03c_FabricationMechatronicsTrainingV2
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Georgia Institute Of Technology *
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Course
2110
Subject
Mechanical Engineering
Date
Dec 6, 2023
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1 G
EORGIA I
NSTITUTE OF T
ECHNOLOGY
George W. Woodruff School of Mechanical Engineering ME 2110 - Creative Decisions and Design, Fall 2023 Studio #3 and #4 –Fabrication and Mechatronics Studio Description: This studio contains two parts: IDEA laboratory fabrication training and mechatronics training. Each of these and the associated deliverables are described in the following. Members of your team will be divided into groups. In the first week, Group A will work on mechatronics and Group B will work on fabrication. In the next week, groups will change places. IDEA Laboratory Safety: It is critical that you follow safe practices in the use of the IDEA laboratory and other physical fabrication facilities. The fabrication equipment in the IDEA laboratory involves many hazards. If used improperly or negligently, the studio tools and equipment can cause severe injury and bodily harm. Soldering stations also can cause burns if used improperly. The instructional team will brief you on laboratory safety practices and you will be required to sign a user agreement form regarding safe use of the laboratory space before you can use equipment. Training Schedule:
This assignment will occur from Week 3 to Week 4, as noted on the course calendar. Table 1 shows the training schedule. All elements will be turned in on Canvas and will be due at the start of studio Week 6. Table 1. Training schedule for fabrication and mechatronics during Weeks 3 & 4. Training Schedule
Group A
Group B
Week 3 Mechatronics Training and Task Sheet (group)
Fabrication Training and Gear Train Assembly
(individual)
Week 4 Fabrication Training and Gear Train Assembly
(individual)
Mechatronics Training and Task Sheet (group)
2 PART 1. MECHATRONICS TRAINING AND TASK SHEET. Studio Description:
This assignment is designed to give students the skills and experience to program the Arduino Uno microcontroller and to utilize the mechatronics kit, which integrates electrical, mechanical, and pneumatic systems. Students must program the Arduino to accomplish various tasks involving mechatronics components. The lab has two sections performed over two weeks. During the first week, Group A
will complete one part of the lab, labeled “Mechatronics Lab Tasks: Group A;” during the second week, Group B
will complete “Mechatronics Lab Tasks: Group B.” Although the programming style will not be graded, the programs should be helpful for the final project. Therefore, it is important to program using standard structure and commenting so that the program will be easy to follow for reference. Studio Tasks and Deliverables: 1.
Complete mechatronics training. The student must attend the briefing given by the studio GTA. 2.
Complete mechatronics task sheet. The student must finish the required mechatronics task sheet for their group. To complete the task, the student must demonstrate completion of the required task and provide a brief oral explanation of how the code accomplishes the required task. The student group will upload a video of each task completed with an oral explanation of how the code works and a contribution statement pdf to Canvas. Each student within a group must participate in coding one task and presenting another teammate's task in the video. This is a pass/fail requirement for this class. A group that receives an incomplete or “fail” grade must correct any feedback and present their corrections in-person to their studio TA for regrading. Mechatronics Kit: The mechatronics kit contains sensors, actuators, boards, power supplies and other components that will be used in this studio assignment and in the final project. Please note that your team will check out a mechatronics kit during studio. This kit is for your team to share and use over the studio assignment. All team members are responsible for the complete return of this kit and all its components in working condition. If your team is missing any components or have damaged components due to negligence, then you must replace these components immediately following the BOM links on the website. Students will not be given a final grade for this course until all kit materials have been returned. General Instructions:
Before attempting to perform these programming tasks, read the Arduino Mechatronics Manual on the course website.
The manual provides background on the layout of the Arduino Uno controller and explains how to implement the mechatronics components in a design. The tasks for Group A
and Group B
, and the checklists, are provided on subsequent pages. Canvas Submission Instructions: Mechatronics task completion will be verified by a video upload to Canvas, a PDF contribution statement upload, and submission of the final code. A single video demonstrating all tasks is expected. Separate videos demonstrating each task are also acceptable. The final video(s) should clearly show the Arduino working on each task, then show the code that was used to execute it with an oral description of how it works. Every student within Group A (or B) should be involved in the video for another teammate’s task. To accommodate
3 this, for example, each group could teleconference (e.g., Zoom, MS Teams, etc.) to record the video. The video should have the following sequence: §
Student 1 with the mechatronics kit would use their laptop camera to record the Arduino kit working on Task 1. §
Student 2 then shares their screen and talks through the code for Task 1 and how it works. §
Student 2 then turns off screen sharing. §
Student 1 then demonstrates Task 2 on the Arduino kit on camera. §
Student 2 (or Student 3) then shares their screen and talks through code for Task 2. §
Then they turn off screen sharing. This is repeated until all tasks are done. On Canvas, upload the video(s) to the submission site and your code in a .pdf file.
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4 Mechatronics Lab Tasks: Group A (Week 3)
1.
Test that your mechatronics components are all in working order. Using the Github directory (in the Arduino Mechatronics Manual) where you downloaded the myDuino library, download and run BOTH
Actuator_Test.ino
and MyDuino_Test.ino
. Check and understand the code to know which components are being used and verify that they are operating correctly. Reference the mechatronics manual when connecting the pneumatic components. 2.
Connect one momentary switch (long-arm or roller) and one solenoid (large or small) to the Arduino board. Use the switch to control the state of the solenoid. When the switch is pressed and released, the state of the solenoid should change; i.e., if the solenoid is inactive, pressing and releasing the switch once will cause it to activate. The solenoid should then remain active until the switch is pressed and released again. Hint: remember the lesson about switch debouncing! 3.
Connect the rotary encoder, a DC motor and two momentary switches (long-arm or roller) to the Arduino development board. Use the readings from the encoder to control the duty cycle of the PWM signal to the DC motor. Each full rotation of the encoder should correspond to a 10% change in duty cycle (0-100). In other words, if the program is started and then the encoder is turned one full rotation, the motor should be running at 10% duty cycle; after 10 rotations, the motor should be running at full speed. While one switch is held down, the motor should spin clockwise. While the other is held down, the motor should spin counterclockwise. When both or neither switches are held, the motor should not turn at all. Also, use the LEDs on the development board to indicate the motor's direction of travel. One LED should illuminate when the motor is traveling CW and the other when the motor is traveling CCW. 4.
Connect the IR sensor, banana plugs, and a motor to the Arduino development board. Rotate the motor in one direction for 10 seconds when the IR sensor detects an object within 6 – 10 cm from its lens. You will need to calibrate the IR sensor to determine the relationship between its voltage outputs and distance. The banana plugs should function as a “kill” switch, stopping the motion of the motor regardless if 10 seconds have elapsed or if there is an object within the 6-10 cm range of the IR sensor. 5.
Swap the IR sensor for the ultrasonic sensor. No calibration should be necessary. Place an object 10cm away from the face of the speakers (the two cylinders protruding from the sensor case). How accurate is the reading? How does this compare to the IR sensor, and why might there be a difference?
5 Mechatronics Lab Tasks: Group B (Week 4)
1.
Test that your mechatronics components are all in working order. Using the Github directory (in the Arduino Mechatronics Manual) where you downloaded the myDuino library, download and run BOTH
Actuator_Test.ino
and MyDuino_Test.ino
. Check and understand the code to know which components are being used and verify that they are operating correctly. Reference the mechatronics manual when connecting the pneumatic components. 2.
Connect the ultrasonic sensor and one momentary switch (long-arm or roller) to the driver board. Instead of using a digital input port, connect the switch to the encoder port as demonstrated in Figure 17 of the Mechatronics Manual. Use the switch to control the state of the LED. When the switch is pressed and released, the state of the LED should change; i.e., if the LED is off, pressing and releasing the switch once will cause it to turn on. The LED should not turn off until the switch is pressed and released again. Use the ultrasonic sensor as a kill switch that can turn off the LED. If an object is within 10cm, the LED should remain off, independent of the switch state. Hint: remember the lesson about switch debouncing!
3.
Connect the rotary encoder, a DC motor and two momentary switches (long-arm or roller) to the Arduino development board. Use the readings from the encoder to control the duty cycle of the PWM signal to the DC motor. Each full rotation of the encoder should correspond to a 10% change in duty cycle (0-100). In other words, if the program is started and then the encoder is turned one full rotation, the motor should be running at 10% duty cycle; after 10 rotations, the motor should be running at full speed. While one switch is held down, the motor should spin clockwise. While the other is held down, the motor should spin counterclockwise. When both or neither switches are held, the motor should not turn at all. Additionally, use the LEDs on the development board to indicate the direction of travel of the motor. One LED should illuminate when the motor is traveling CW and the other when the motor is traveling CCW. 4.Connect a potentiometer and banana plugs to the Arduino development board, then connect both solenoids and both pneumatic valves to the digital output ports of the Arduino board. Using the knob on the potentiometer, have it incrementally activate the digital output ports as you turn the knob, starting with DI1 and continuing until all 4 components are activated. The banana plugs should function as a temporary kill switch that deactivates the digital outputs for the next 10 seconds. After 10 seconds have elapsed, the components should return to their previous state.
6 PART 2. FABRICATION TRAINING AND TASK SHEET Studio Description:
This assignment is designed to teach students how to use the laser cutter, 3D printing, power tools and the bandsaw to create parts and assemblies. The final product will be a gear train assembly. The lab consists of three training modules, where small groups of students will rotate between laser cutting, 3D printing, power tools and bandsaw. During the first week, Group B
will be trained. During the second week, Group A
will be trained. Studio Tasks and Deliverables: 1.
Complete training. The student must attend the IDEA laboratory safety overview and training on the laser cutter, 3D printer, power tools, and bandsaw given by the studio GTA. The GTA will record the student’s attendance and completion of training in Canvas. This is a pass/fail requirement for this class. This training MUST be completed before the student can begin using IDEA lab equipment. During training, you will fabricate parts of the assembly shown at the end of this document individually. A Bill of Materials (BOM) is included in the drawing on Page 9. Referenced CAD files are loaded to Canvas, linked within the project descriptions page. These provided .sldprt CAD models from the assembly will be used to create .dxf, .svg, and .pjx files. 2.
Complete fabrication and assembly of the required components. Individually, students will produce one assembled Planetary Gear Train according to the drawings in this document. A recommended process plan is provided that can be followed as a step-by-step process. Each student should upload a video of their completed assembly to Canvas showing its functionality (gears turning). 3.
Complete Fabrication Tasks and File Creation. Each student must individually complete the tasks below, including the creation of .dxf, .svg, .pjx, and .stl files as well as a series of images (e.g. .png, .jpg). The files created will be uploaded to the Canvas submission. a.
Laser cutting training assignment:
Your assignment is to generate a file for laser cutting in Inkscape. Download the .zip file that contains CAD assembly files from the main course Canvas page. Select the “Ring Gear”, “Sun Gear”, “Planet Gear”, “Front”, and “Back” .sldprt files and generate .dxf files from the relevant component faces. Generate a valid Inkscape .svg file for laser cutting in Trotec Job Control, it should be modified such that an appropriate color palette is used. Modify the cut settings such that Power = 100, Speed = 0.3, PPI/Hz: 1000, Passes = 1 and perform a vector ordering operation with ‘quick ordering’. Record the time estimate for cutting. You will need to save a .pjx Job Control file with appropriate cut settings. Take a screenshot of the final build plate layout (e.g., .png, .bmp, .jpg, .jpeg). Upload the .dxf, .svg and .pjx files and the screenshot file to Canvas.
b.
3D printing training assignment: Your assignment in this studio is to download the “Planet Carrier” .sldprt file, generate a .stl file, and create a build plate layout in Cura that includes the part properly oriented on the build plate (no support structures, no adhesion, 5% infill (grid type), material PLA-Generic, 0.4 mm nozzle, 0.15 mm layer height) appropriately spaced such that it does not overlap with the edge of the build plate. Remember to change the 3D printer model (Ultimaker 2+, 3, or 3S) based on
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7 what printer you will be using to make your print. Record the time (i.e., hours, minutes) and material estimate (i.e., weight, filament length) for the build. Save the Cura .3mf project file. Take a screenshot of the final build plate layout (e.g., .png, .bmp, .jpg, .jpeg). Upload the .stl, the .3mf files and the screenshot file to Canvas.
Fabrication Training Checklist and Final Deliverables * Items to be turned in on your Lab Section Canvas individually ⎯
Complete IDEA Lab Training ⎯
3D Printer & Laser Cutter ⎯
Bandsaw & Power Tools (drill, driver, jigsaw) ⎯
Calipers & Tape Measure ⎯
Individual Task – Assembled Planetary Gear Train *Video of completed Planetary Gear Train Assembly ⎯
Individual Tasks – Laser Cutting *Generate .dxf File from SolidWorks *Generate Inkscape File (.svg) *Generate Trotec JobControl File (.pjx) *Screenshot of JobControl with estimated time displayed (e.g., .png, .jpg, .jpeg) ⎯
Individual Tasks – 3D Printing *Generate .stl from SolidWorks *Generate Cura File (.3mf) *Screenshot the Final Build Plate with Planet Carrier part (e.g., .png, .jpg, .jpeg) *Photo of completed 3D printed part
8 Suggested Process Plan for Gear Train Assembly The below procedure is a suggested process plan for assembling the Gear Train. 1.
Begin 3D printing the Planet Carrier as soon as possible. 2.
Laser cut Ring Gear, Sun Gear, Planet Gears, Front, and Back using provided MDF material. 3.
Obtain a piece of 1”x4” stock plywood material. Cut the material to length according to the drawings below. 4.
Both operations detailed below in drawings, machine the pilot holes in the plywood Stand, then use the jigsaw to cut out the specific geometry. 5.
Machine the Driving Gear and Spacer 2 parts that were laser cut in step 2 according to the dimensions included below. 6.
Assemble the trophy using the exploded assembly view provided, finding the fasteners required using the provided Bill of Materials (BOM). It is recommended to assemble the base and gear train separately and then fasten using the nuts and bolts provided. A section view of the Base Subassembly can be found in Figure 1.
9 3
11
1
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0.05"
ITEM NO.
PART NUMBER
DESCRIPTION
QTY.
1
Stand
1x4 Lumber
1
2
Base Front
1x4 Lumber
1
3
Base Back
1x4 Lumber
1
4
Back
Laser Cut MDF
1
5
Ring Gear
Laser Cut MDF
1
6
Sun Gear
Laser Cut MDF
1
7
Planet Carrier
3D Printed PLA
1
8
Planet Gear
Laser Cut MDF
4
9
Front
Laser Cut MDF
1
10
Hex Bolt
Steel
1
11
Hex Nut
Steel
1
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Wood Screw
Steel
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Exploded View
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ME 2110 Fabriction Assignment Fall 2023
SHEET 1 OF 9
UNLESS OTHERWISE SPECIFIED:
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TITLE:
NAME
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COMMENTS:
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MFG APPR.
ENG APPR.
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DRAWN
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TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
SOLIDWORKS Educational Product. For Instructional Use Only.
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10 3.75 0.30 0.30 A
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Front Detail Drawing
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DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
SOLIDWORKS Educational Product. For Instructional Use Only.
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DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
SOLIDWORKS Educational Product. For Instructional Use Only.
12 0.80 R1.88 A
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Ring Gear Detail Drawing
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DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
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13 0.25 1.58 A
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Sun Gear Detail Drawing
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TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
SOLIDWORKS Educational Product. For Instructional Use Only.
14 0.19 0.83 A
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Planet Gear Detail Drawing
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DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
SOLIDWORKS Educational Product. For Instructional Use Only.
15 4.00 2.00 0.25 0.50 0.50 0.50 4.75 0.75 A
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Stand Detail Drawing
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MATERIAL
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TOLERANCES:
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ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
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16 2.75 3.00 0.75 4.00 0.75 A
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Front Base Detail Drawing
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ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
SOLIDWORKS Educational Product. For Instructional Use Only.
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Back Base Detail Drawing
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MFG APPR.
ENG APPR.
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MATERIAL
INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL
ANGULAR: MACH
BEND TWO PLACE DECIMAL THREE PLACE DECIMAL APPLICATION
USED ON
NEXT ASSY
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS PROHIBITED.
SOLIDWORKS Educational Product. For Instructional Use Only.
18 Figure 1: Section View of Planetary Gear Train Base Subassembly Clearance Hole Pilot Hole 1.5”
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flow in a horizontal channel at a Reynolds number of 150. The schematic below illustrates the channel flow,
not drawn to scale. For simplicity, neglect gravity. The…
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Assignment 1: TIME VALUE OF MONEY
Objective: To further understand the concept of the time value of money.
INSTRUCTIONS:
In each problem,
a. Translate data given in problems into their respective graphical representations - i.e. draw
the correct cash flow diagram.
b. Write down all pertinent given information or data on your paper.
c. Calculate answers correctly.
3. A certain college graduate, Sallie Evans, has $24,000 in student-loan debt at the end of
her college career. The interest rate on this debt is 0.75% per month. If monthly payments
on this loan are $432.61, how many months will it take for Sallie to repay the entire loan?
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You are assigned as the head of the engineering team to work on selecting the right-sized blower that will go on your new line of hybrid vehicles.The fan circulates the warm air on the inside of the windshield to stop condensation of water vapor and allow for maximum visibility during wintertime (see images). You have been provided with some info. and are asked to pick from the bottom table, the right model number(s) that will satisfy the requirement. Your car is equipped with a fan blower setting that allow you to choose between speeds 0, 1,2 and 3. Variation of the convection heat transfer coefficient is dependent upon multiple factors, including the size and the blower configuration.You can only use the following parameters:
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You are a contractor and receive the following email please respond to your client as effectivley and efficiently as possible
Dear Project Manager-
I am starting to worry about the heating and cooling system for the office area. The way we do business is rapidly changing and more and more computer equipment is needed. What can we do to ensure that the cooling system will be able to handle more equipment that gives off heat in the space?
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Help!!! Answer all parts correctly!! Please
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Case Study: Paula’s Pain
Paula has worked for Brindle Corporation for 3 years. During this time, she has worked as a machine operator/cell leader in various work cells. Recently, the plant went to mandatory 12-hour shifts and plans to remain on this schedule for several months.
Paula’s present work cell is manufacturing 3-inch diameter exhaust tubes that are made from stainless steel. These tubes get a hole punched in them, a flange welded on, and burrs ground off. The pipe then gets placed into a gage to check that it was made correctly. (The tubes weigh about six pounds.)
Paula has been performing the welding operation. She leans into the machine and loads the part into a fixture then positions the flange. Both pieces are clamped (using hand clamps) into position and the machine is cycled by depressing two palm buttons.
The gaging operation requires placing the finished part into the gage and clamping it (using hand clamps) into place. A pin is depressed to verify the position…
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The first photo is the question, where the 2nd shows some problem solving strategies
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This is an engineering problem and not a writing assignment. Please Do Not Reject. I had other engineering tutors on bartleby help me with problems similar to this one.
This problem must be presented in a logical order showing the necessary steps used to arrive at an answer. Each homework problem should have the following items unless otherwise stated in the problem:
a. Known: State briefly what is known about the problem.
b. Schematic: Draw a schematic of the physical system or control volume.
c. Assumptions: List all necessary assumptions used to complete the problem.
d. Properties: Identify the source of property values not given to you in the problem. Most sources will be from a table in the textbook (i.e. Table A-4).
e. Find: State what must be found.
f. Analysis: Start your analysis with any necessary equations. Develop your analysis as completely as possible before inserting values and performing the calculations. Draw a box around your answers and include units and follow an…
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Group Problem: You are planning to build a log cabin in Northern Minnesota on a remote hill with a beautiful
view of the setting sun. You will drag the logs up a long sometimes rocky hill to the building site by means of a
rope attached to a winch. You will need a rope for this job so you aim to know how much weight the rope would
safely support. You are operating on a tight budget so matching the rope strength would be a cost saver. You
know that the logs are heavy, and estimate the heaviest as 1,000 lbs. From maps you verify the hill is steeped
at an angle of = 70° with respect to the vertical, and you estimate a coefficient of kinetic friction between a
log and the earthen hill as 0.5. When pulling a log you will ensure that the uphill acceleration is never more
than 3.0 ft/s². The maximum recommended load is th of the nominal strength for the ropes considered as
stated on the product labels, you have three ropes in mind: 12 kN, 18 kN, & 24 kN. Which one of these three
rope…
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Mech. Engg. Dept.
4th year 2022-2023
Solar Energy
Spring course MEC364
Dr. Mahmoud U. Jasim
Review/Recap Sheet
Q1- Answer with true or false and rewrite the false statements completely in
correct form, otherwise no mark will be put on the false statements.
1
2
To represent a location on earth surface you need to define its altitude and longitude
angles.
3
Solar zenith and solar incidence angles have the same value for horizontal surface.
At sunset time the value of solar altitude angle is maximum.
4
The angle which represents the inclination of a given surface is the zenith angle
5
6
7
8
When the absolute value of sun-wall azimuth angle exceeds 90' this means that the sun
rays are reaching the receiving plane.
The solar irradiance and the solar irradiation have the same physical meaning.
In the case of clear sky weather, the beam solar irradiation on a horizontal surface is less
than the diffused irradiation.
The total solar radiation received by a tilted surface is the same as that…
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Task 1
You are employed as a mechanical engineer within an unnamed research center, specializing in the development.
of innovative air conditioning systems. Your division is tasked with providing computer-based modeling and
design solutions using computational fluid dynamics through ANSYS software. Your primary responsibilities.
involve the analysis of horizontal channel dynamics to meet specific criteria. Under the guidance of your
immediate supervisor, you have been assigned unique responsibilities within an ongoing project. As a member of
the research team, your role includes constructing an appropriate model and executing a sequence of simulation.
iterations to explore and enhance channel performance. Figure 1 provides a visualization of the horizontal channel
under consideration. Consider 2D, incompressible, steady flowin a horizontal channel at a Reynolds number of
150. The schematic below illustrates the channel flow, not drawn to scale. For simplicity, neglect gravity. The…
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Astronomy Question:
Read the questions slowly and answer with precise and long details about each of the questions. Answer correctly and follow my guidelines for a long and wonderful review after results. Your target/main observable galaxy is the whirlpool galaxy. Target: Whirlpool Galaxy Object Type: Galaxy Distance: 37 million light-years Constellation: Canes Venatici. DO NOT COPY AND PASTE OTHER WORK OR THINGS FROM THE INTERNET, use your own words.Provide refernces if used
In 500 words, please explain the relevance of this object to the physics course material in university andits importance to astronomy. (Some question you may seek to answer are: What beyond the objectitself is learned by studying this class of objects? What sorts of telescopes and observations would beneeded for more detailed, broader reaching studies of this source and objects of its nature?)
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Create a reading outline for the given text "STRESS and STRAIN".
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