Problem 2. (30%) Determine the required force P that must be applied at the handle of the pruning shears so that the blade exerts a normal force of 50 lb on the twig at E. Determine the horizontal and vertical components of force which the pins at A and D exert on member JADG. Present a F.B.D. for each analysis performed. -22 EMPO G PE-7Mo-in 0.5 in. 0.5 in. H 4 in. 1 in. 0.75 in. 0.75 in. とこ。 0.7...
For the screw clamp shown, a force is applied at the end of the handle 3 in from the screw centerline. The 큼 in diameter handle is made of cold-drawn AISI 1006 steel. The screw is in-10 UNC and is 8 in long, overall. The maximum possible length of screw in the clamping region is 6 in. (a) What screw torque will cause the handle to bend permanently? (b) What clamping force will the answer to part (a) cause if...
2) [30 pts] C-clamp with handle, power screw For the C clamp shown, a force is applied at the end of the 0.375 in diameter handle. The screw is a 0.75 in-6 Acme thread (from Figure 8-3), and is 10.4 in long overall, with a maximum of 8 in possible in the clamping region. The handle and screw are both made from cold-drawn AISI 1006 steel. The coefficients of friction for the screw and the collar are 0.15. The collar,...
For the screw clamp shown, a force is applied at the end of the handle 3 in from the screw centerline. The 큼 in diameter handle is made of cold-drawn AISI 1006 steel. The screw is in-10 in (a) What screw torque will cause the handle to bend permanently? er to part (a) cause if the thread friction is 0.15? (c) What clamping force will cause the screw to buckle? (d) Are there any other stresses or possible failures to...
4.33 A force P of magnitude 90 lb is applied to member ACDE that is supported by a frictionless pin at D and by the cable ABE. Since the cable passes over a small pulley at B, the tension may be assumed to be the same in portions AB and BE ofthe cable. For the case when a = 3 in., determine (a) the tension in the cable, (b) the reaction at D 12 in. Fig. P4.33
A 1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. The spring has an undeformed length of 5 in. and a constant k-25 lb/ft. Knowing that the collar is released from being held at A determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through B. (Round the final answer to two decimal places.) 3 in 7 in The...
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P 4-20 Page 140 F 20 lb Given: A 20 lb force is applied 30° to the hammer. The moment of the force at A Find: 5 in 18 in.
P 4-20 Page 140 F 20 lb Given: A 20 lb force is applied 30° to the hammer. The moment of the force at A Find: 5 in 18 in.
in 5. The following data apply to the C-clamp: a. The screw is ACME with % " Diameter b. Coefficient of thread friction c. Coefficient of collar friction = 0.2 d. Mean collar radius = 0.4 in. e. Max. clamping force 1200 lb Determine: =0.12 The tightening torque The operator force at the end of the handle (Note: Use table 8-3 to determine the screw pitch (p)) (5 points)
this part. The system shown is at rest when a constant force E 50 lb is applied to collar B. Pre2 Next > 3 of 5 2 ft 18 lb 6 lb A If the force acts through the entire motion, determine the speed of collar B as it strikes the support i C The speed of collar B is2.24 ft/s. After what distance d should the 50 lb force be removed if the collar is to reach support C...
The flex-headed ratchet wrench is subjected to a force of P = 16 lb, applied perpendicular to the handle as shown. Determine the moment or torque this imparts along the vertical axis of the bolt at A.