An engine develops 5.0 MW at 115 RPM and the ratio of maximum to mean torques is 1.3 to 1. Calculate the diameter (in mm) of the main shaft coupled direct to the engine to transmit the power 1. а. allowing a stress of 50 MPa and assuming the shaft to be solid. b. Calculate the diameter (in mm) of the main shaft coupled direct to the engine to transmit the power allowing a stress of 50 MPa and assuming the hollow with a bore equal to half the outside diameter.

An engine develops 5.0 MW at 115 RPM and the ratio of maximum to mean torques is 1.3 to 1. Calculate the diameter (in mm) of the main shaft coupled direct to the engine to transmit the power 1. а. allowing a stress of 50 MPa and assuming the shaft to be solid. b. Calculate the diameter (in mm) of the main shaft coupled direct to the engine to transmit the power allowing a stress of 50 MPa and assuming the hollow with a bore equal to half the outside diameter.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: A hollow shaft is required to transmit 700 kW at 110 r.p.m., the maximum torque being 20% greater…

Q: This engine is used in a hoist. Motor 2.5 kW with the help of gears with a power of and n = 500 rpm.…

Q: If the shaft now bored in order to reduce weight to produce a tube of 100 mm outer diameter and 60…

Q: 1) A 35 mm diameter shaft operating at 2000 rpm transmits 1000 kW. The bending and axial loads on…

Q: 4 kN m 1.5 kN m Aluminum Steel Bronze B 100 mm 75 mm 3m 2 m 1.5 m- C FIG. P3.12 FIG. P3.11 3.12 The…

A: For solution refer below images.

Q: 2. For the system shown below, compute the maximum torque it can accommodate if a is 2000mm and b is…

A: Find the maximum torque .

Q: The torque of a steel shaft transmitting 20 kW at 320 rpm is

A: Power transmitted by the steel shaft, P = 20 kW = 20*103 W Revolutions, N = 320 rpm

Q: Determine the minimal value of a radius of the circular-solid shaft in problem 1 such that the…

Q: Consider a solid circular shaft A-D with varied diameter (dAB=0.6 in, d³c-0.75 in, and dcp=0.9 in).…

A: In conclusionFinding the exact location of maximum shear stress and plotting the shear stress…

Q: maximum shear stress in the shaft

A: Given; Motor driving a solid circular steel shaft transmits, P =40KW Speed,N=500 rpm If the diameter…

Q: Find the max shear stress in given data of two circular shafts (S) AND (H)

A: GIVEN DATA; Two circular shaft made same material one solid and one hollow both have same length…

Q: Two designs for a shaft are being considered. Both have an outside diamete of 80 m and are 100 cm…

Q: A SOLID 1.8 IN. DIAMETER SHAFT IS UTILIZED TO SYNCHRONIZE MULTIPLE MECHANISMS IN THE MANUFACTURING…

A: Given: The diameter of the solid shaft is d=1.8 in. The torque delivered by the shaft is T=3500…

Q: (a) The tubular rotor shaft of a wind turbine shown in Figure 3(a) is of 50 mm and 40 mm outer and…

A: Given data Outer Diameter of Tubular shaft = Do = 50 mm = 0.05 mInner Diameter of Tubular Shaft = Di…

Q: A solid constant-diameter circular shaft is subjected to the torques of TA = 440 Ib-ft, TB = 1030…

Q: 2. The diameters of the solid shafts are: AB is 0.6 in, BC is 0.75 in. and CD is 0.9 in. The applied…

Q: (14) A 40mm steel shaft rotates @ 600rpm & handles 10kW delivered from a pulley located 300mm from…

A: Given data, Diameter of the shaft, d = 40 mm RPM of the shaft rotation, N = 600 rpm Power…

Q: 5.2 A hollow bronze shaft of 75 mm outside solid steel shaft of 50 mm diameter and of the same…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: shaft transmits 75 kW power at 300 r.p.m. The distance between the two bearing is 3000 mm. It is…

Q: A single plate friction clutch with both sides of plate being effective is used to transmit power at…

Q: A hollow shaft of 1 m length is designed to transmit a power of 30 kW at 700 rpm. The maximum…

A: Given, Length of shaft = L = 1 m Power transmitted = P = 30 kW = 30 x 103 W Shaft RPM = 700 rpm…

Q: 5.2 A hollow bronze shaft of 75 mm outside diameter and 12.5 mm thick is coaXlal WiU. solid steel…

A: Outer diameter, Do=75 mmInner diameter, Di=50 mmDiameter of steel shaft, D=50 mmT=5693 N.m Note:…

Q: A hollow shaft of outer diameter 40 mm and inner diameter of 20 mm is to be replaced by a solid…

A: For hollow shaft outer diameter (D) = 40 mm , Inner diameter =20 mm ;And also the torque and maximum…

Q: The driveshaft of an automobile is being designed to transmit 234 kw at 3167 rpm. Determine the…

Q: A hollow steel shaft is transmitting 15 kW at 420 rpm. Calculate the thickness of the shaft where…

A: Given, Power, P=15 kW Speed, N=420 rpm The outside diameter of the shaft, Do=50 mm Allowable shear…

Q: What is the maximum diameter (mm) of a solid steel shaft that will not twist through more than 3…

A: Given: Maximum twist allowed, θ=3°Length of the shaft, L=6 mTorque applied, T=14 kN.mShear modulus,…

Q: As shown, a shaft is composed of five cylindrical sections. A motor is attached at F and supplies…

Q: The bending stress at point A.

A: Given data Outer Diameter of Shaft = Do = 50 mm = 0.05 mInner Diameter of Shaft = Di = 40 mm = 0.04…

Q: An automobile engine develops a maximum torque of 162Nm. The low gear ratio of transmission is 2.75,…

Q: The drive shaft AB of an automobile is made of a steel having an allowable shear stress of Tallow =…

Concept explainers

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.

Question

An engine develops 5.0 MW at 115 RPM and the ratio of maximum to mean torques is 1.3 to 1.
Calculate the diameter (in mm) of the main shaft coupled direct to the engine to transmit the power
1.
а.
allowing a stress of 50 MPa and assuming the shaft to be solid.
b.
Calculate the diameter (in mm) of the main shaft coupled direct to the engine to transmit the power
allowing a stress of 50 MPa and assuming the hollow with a bore equal to half the outside diameter.
For Solid Shaft:T:
= D't For Hollow Shaft:T=
16
16D
Tm =
P/w

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Please try to answer the question within 25 minutes here value of R is 48
Please solve step by step both sub parts. shaft transmits 75 kW power at 300 r.p.m. The distance between the two bearing is 3000 mm. It is subjected to torsion only. Calculate the diameter of the shaft, (1)For steady loading and (ii) For suddenly applied load with minor shocks. Take the allowable shear stress for the shaft material as 35 N/mm².
None
PLEASE ANSWER NUMBER 3.11 MECH 221: PLEASE GIVE DETAILED SOLUTIONS AND CORRECT ANSWERS. I WILL REPORT TO BARTLEBY THOSE TUTORS WHO WILL GIVE INCORRECT ANSWERS.
2. Two shafts, one solid the other one hollow, are connected end to end by means of a coupling in which there are 8 screws on the pitch diameter D = 250 mm. The solid shaft has diameter d = 50 mm and transfers the power P = 500 kW at 75 rev/s. The external diameter of the hollow shaft is dex = 75 mm. %3D Note: All parts of the system must be equally strong, and able to transfer the required power Calculate: (a) The internal diameter d; of the hollow shaft (b) The diameter of the bolts d, connecting the two shafts (c) If the hollow shaft has to be replaced by a rectangular hollow cross-section with outer dimensions b xh and uniform wall thickness of 4 mm. Calculate the values b, h while following the request to keep h = 2b
8.9 (A/B). A solid steel shaft of 200 mm diameter transmits 5 MW at 500 rev/min. It is proposed to alter the horsepower to 7 MW and the speed to 440 rev/min and to replace the solid shaft by a hollow shaft made of the same type of steel but having only 80% of the weight of the solid shaft. The length of both shafts is the same and the hollow shaft is to have the same maximum shear stress as the solid shaft. Find: (a) the ratio between the torque per unit angle of twist per metre for the two shafts; (b) the external and internal diameters for the hollow shaft. [L.Mech.E.] [2.085; 261, 190 mm.]
es/ EN6902 / General / Final Exam A Wind Turbine has a maximum output of 2MW at a speed of 20 rpm. A shaft of length 2m made of EN8 steel (properties given in the table below) is to transfer torque from the propeller to the turbine. Using a design stress for EN8 Shafting as 240 MPa. You are to: Calculate the diameter size of a solid shaft in mm, so that it will not fail due to torsion. EN8 Shafting Steel Ultimate tensile stress 850 MPa Ultimate shear stress 490 MPa Tensile Yield stress 530 MPa Shear Yield stress 300 MPa Young's miodulus Modulus of rigidity 210 Gpa 78 GPa Select one: O a. 270 O b. 136 O c. 135 O d. 272 SW
A solid 1.2 in. diameter shaft is used to synchronize multiple mechanisms in a manufacturing plant. The torque delivered by the shaft is 3200 lb·in. What horsepower must be delivered to the shaft to maintain a shaft speed of 690 rpm? What is the maximum shear stress developed in the shaft?
I need Question 5.2.3 &5.2.4
None
A shaft is transmitting 100 kW at 160 rpm. Find a suitable diameter for the shaft if the maximum torque transmitted exceed the mean by 25%. Take maximum allowable shear stress as 70 MPa.