The two lever assembly shown below is subject to a static load F = 8250 lb.%3D(a)identical links BD can be made from based on the stress in the middle of each link.Specify the lowest-strength alloy steel from Appendix A-10 that the two(b)is the minimum recommended diameter that the pins can be machined to?The pins at B and D are made from SAE 4140 OQT 900 alloy steel. WhatWhat is the bearing stress on the pins at B and D based on the pin(c)diameter you calculated in part (b) above?9 in8 inCBTop ViewAВCB0.75 in --0.31 inF 0.31 inSide ViewFront View

Answered: The two lever assembly shown below is…

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

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S-3) In order to carry the 100 KN force safely on the frame in Figure 3, find the diameters of the B and D pins (B single cut D double cut), the thickness t of the BD bar. (Safety Cat.(S)=2, T = 250 Nmm2 o -350 N/mm2) 40.a mm 300 mm a=9.6 TAKE 60.a mm 50 mm D Yatağı 100 mm t mm F=100 kN
The figure shows a shaft mounted in bearings at A and D and having pulleys at B and C. The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is to be made of ASTM grade 25 cast iron using a design factor na = 2.8. What diameter should be used for the shaft? 6-in D. 300 lbf 27 lbf 360 lbf D 6 in A 8 in 50 lbf B 8-in D. 8 in
(4) An electric motor purchased by your employer surprisingly arrived without a keyway in the shaft. The motor has power rating of 7.5kW & 1,800rpm & has a shaft of Ø17mm. It will be used to drive a centrifugal pump using cast iron sheave. Design the square key to be used in the assembly based on maximum bearing & shearing stresses of 580MPa & 370MPa, respectively, and factor of safety of 5.
Please help ASAP. Help for parts A-B will upload for the other part. Provide Free Body Diagram, labeled with appropriate quantities to better understand. Also solve. Thank you.
mechanical design
Required information For a bolted assembly with six bolts, the stiffness of each bolt is kb 2 Mibf/in and the stiffness of the members is km = 13 Mlbf/in per bolt. An external load of 80 kips is applied to the entire joint. Assume the load is equally distributed to all the bolts. It has been determined to use 1/2 in-13 UNC grade 8 bolts with rolled threads. It is desired to find the range of torque that a mechanic could apply to initially preload the bolts without expecting failure once the joint is loaded. Assume a torque coefficient of K = 0.2. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the maximum bolt preload that can be applied without exceeding the proof strength of the bolts once the load is applied. The maximum bolt preload that can be applied is Ibf.
The figure shows a section of a large coupling. Each bolt in this joint is subjected to cyclic load fluctuating between 0 and 13 kN. The members are made from steel. The members have equal thicknesses and total length of members is L=37 mm. Each bolt is initially tightened carefully to 78% of proof load. The bolt is to be Metric grade 5.8 M12x1.75 (coarse-pitch series). The threads has been manufactured by rolling and reliability for bolts is 95%. Calculate the stiffness of the bolt (in kN/mm). Yanıt:
Urgent
The figure illustrates the connection of a steel cylinder head to a grade 30 cast-iron pressure vessel using N bolts. A confined gasket seal has an effective sealing diameter D. The cylinder stores gas at a maximum pressure pg. For the specifications given in the table for the specific problem assigned, select a suitable bolt length from the preferred sizes in Table A–17, then determine the yielding factor of safety np, the load factor nL, and the joint separation factor n0. See problem number 8-36, and please use the FEA exponential curve-fit for member stiffness.
A rigid coupling with 30 inches of bolt circle diameter transmits a torque of 18,000 lb-in. The coupling material has a yield strength of 90,000 psi. The coupling is fastened by six bolts. Assume design factor of N=3 Calculate the diameter of each bolt.
The eye screw, shown in the figure below is subjected to a force of 35 kN. The material of the screw is steel with ??=355 ???. The safety factor is 1,5. Calculate the minimum diameter of the thread.

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