The image and dimensioned drawings below depict a steel drawb ring with a 100,000-lb towing capacity rating. The drawbar ring is fastened to a 0.75-inch thick steel drawbar coupler plate using four 7/8"x9 hex head bots and regular hex nuts. Determine the SAE bolt grade necessary to ensure a load factor to overproofing of at least 2 (for the rated towing capacity) where the bolts are pre-loaded for reuse. You can neglect any shear loads imposed on the bolted assembly. 0.71in 6.83in 3in 1.62in Ring ID

The image and dimensioned drawings below depict a steel drawb ring with a 100,000-lb towing capacity rating. The drawbar ring is fastened to a 0.75-inch thick steel drawbar coupler plate using four 7/8"x9 hex head bots and regular hex nuts. Determine the SAE bolt grade necessary to ensure a load factor to overproofing of at least 2 (for the rated towing capacity) where the bolts are pre-loaded for reuse. You can neglect any shear loads imposed on the bolted assembly. 0.71in 6.83in 3in 1.62in Ring ID

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

Similar questions

Two identical aluminum plates are each 3 in thick, and are compressed with one bolt and nut. Washers are used under the head of the bolt and under the nut. Washer properties: steel; ID = 0.531 in; OD = 1.062 in; thickness = 0.095 in Nut properties: steel; height = 7/16 in Bolt properties: 1/2 in-13 UNC grade 8 Plate properties: aluminum; E = 10.3 Mpsi; Su = 47 kpsi; Sy = 25 kpsi (a) Determine a suitable length for the bolt, rounded up to the nearest 1/4 in. (b) Determine the bolt stiffness. (c) Determine the stiffness of the members.
Deeith a bolt spacing and gage distance of 0.6br is critical for prying action if the holt tension force is 85% of its capacity. Use LRFD.
Which is procedure provides a method that may be used to determine the displacement of any joint on a truss using the method of virtual forces.?
Draw and design a bushed pin type flexible coupling
RB&W11 recommends turn-of-nut from snug fit to preload as follows: 1/3 turn for bolt grips of 1-4 diameters, 1/2 turn for bolt grips 4-8 diameters, and 2/3 turn for grips of 8-12 diameters. These recommendations are for structural steel fabrication (permanent joints), producing preloads of 100 percent of proof strength and beyond. Machinery fabricators with fatigue loadings and possible joint disassembly have much smaller turns-of-nut. The RB&W recommendation enters the nonlinear plastic deformation zone. The figure shows a cross section of a grade 25 cast-iron pressure vessel, with a torque factor K of 0.09. Use Eq. (8-27) to estimate the torque necessary to establish the desired preload given that preload F;= 14.4 kip, bolt stiffness kb = 5.21 x 106 lbf/in, number of threads N=11, and material stiffness km = 8.95 × 106 lbf/in. in-11 UNCX 2 in grade 5 finished hex head bolt in in 162 No. 25 CI Determine the torque necessary to establish the desired preload and the turn of the nut in…
RB&W¹1 recommends turn-of-nut from snug fit to preload as follows: 1/3 turn for bolt grips of 1-4 diameters, 1/2 turn for bolt grips 4-8 diameters, and 2/3 turn for grips of 8-12 diameters. These recommendations are for structural steel fabrication (permanent joints), producing preloads of 100 percent of proof strength and beyond. Machinery fabricators with fatigue loadings and possible joint disassembly have much smaller turns-of-nut. The RB&W recommendation enters the nonlinear plastic deformation zone. The figure shows a cross section of a grade 25 cast-iron pressure vessel, with a torque factor K of 0.09. Use Eq. (8-27) to estimate the torque necessary to establish the desired preload given that preload F; = 14.4 kip, bolt stiffness kb = 5.21 x 106 lbf/in, number of threads N = 11, and material stiffness km = 8.95 × 106 lbf/in. in-11 UNCX 2+ in grade 5 finished hex head bolt in No. 25 CI Determine the torque necessary to establish the desired preload and the turn of the nut in…
A compression spring needed for a machine operation has to fit within a 1-in. diameter hole. To allow for some clearance, the outside diameter of the spring should not be larger than 0.9 in. To ensure a reasonable coil, use a spring index of 9. The spring will be repeatedly cycled from its free length of 3 in. to a length of 2 in. The solid length of the spring is 1 in. The spring should have squared ends and is to be made of music wire. (a) Determine a suitable wire diameter. (b) Determine a suitable number of coils. (c) Determine the spring rate. (d) Calculate the maximum shear stress the spring will experience during fatigue cycling. (e) Show on a stress vs. time plot how the fatigue cycling on the spring will occur. (f) If the spring is unpeened, what will be the shear endurance limit of the spring material in completely reversed cycling? (g) Can the spring survive a million fatigue cycles? Show by calculation.
Provide link for references 4. What are the advantages and disadvantages of using the Wet Mount technique?
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.
Design a suitable layout for manufacturing a Flange coupling and state its advantages
11 For the belt drive in Problem 10, what is the transmitted torque (in lbf"in) in the smaller pulley? Assume that both service factor Kg and safety factor nd are equal to 1.0. OA. 220 OB. 126 OC. 84 OD. 56 OE. None of the above
The figure illustrates the nonpermanent connection of a steel cylinder head to a grade 30 cast-iron pressure vessel using 73 bolts. A confined gasket seal has an effective sealing diameter D of 0.9 m. The cylinder pressure is cycled between a minimum pressure of zero and a maximum pressure pg of 535 kPa. For the specifications given in the table for the specific problem assigned, select a suitable bolt length from the preferred sizes. Use Table A-17 for calculation purposes. Parameter Value Head thickness, A Cylinder thickness, B Internal diameter of the cylinder, C Gasket sealing diameter, D Bolt circle diameter, E Outer diameter of the cylinder head, 16 mm 25 mm 0.8 m 0.9 m 1.0 m 1.1 m F Bolt grade ISO 10.9 Bolt diameter, d 10 mm NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Find a suitable bolt length. Then, determine the bolt stiffness, material stiffness, and stiffness constant of the joint. The bolt length is 50 mm.…