Determine the magnitudes of all pin reactions for the frame loaded as shown. Assume F = 810 N, a = 685 mm, b = 340 mm, 0 32°, and = 60°.
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- Use the drawing below to answer the following two questions. a. Determine the equivalent spring stiffness of the following system. Simplify the expression (ie – single common denominator. Your answer should be an expression of just K’s – no numbers). b. If the weight on top is 20 lb and the K1 = K4 = 50 lb/in, K2 = 33 lb/in and K3 = K5 = 25 lb/in, what is the natural frequency of the system?1. Determine the pin reactions at 'A'. B -30 lb 20" D 50 lb 20" E 12 C -30"-A leafs spring contains 4 full-length and 8 graduated leafs. The eyebolts at the support are 20 inches apart and the system should carry a load of 400 lbs. If the thickness of the available bronze plate is 1“ and Sy = 80 ksi, what leaf width is required at FOS = 8?
- Solve the problem. A 11-in. connecting rod in an engine connects the wrist pin of a piston at point A to the end of a second rod at point on the crankshaft. As the piston moves forward and back, the crankshaft is turned counterclockwise around point C. The stroke length of the engine is the distance that the piston travels (one way) with its cylinder. If the stroke length is 4 in., and the engine turns at 600 rpm, write a model representing the distance d (in inches) from A to the center of the crankshaft Cas a function of time t (in minutes). Assume that at t = 0, the piston is at its farthest point from the crankshaft. B B C C B A A stroke lengthThe 500 N load is acting on the helical compression spring with 20 number of turns. The helical spring is having the mean diameter of 12cm,spring wire diameter is 6mm. Find the spring inside diameter. Select one: O a. 114 mm O b. 52mm O c. 150mm O d. 20mmRepeat Problem 11.2-3 assuming that R= 10 kN · m/rad and L = 2 m.
- L21. Figure P4-21 shows an anvil for an impact hammer held in a fixture by a circular pin. If the force is to be 500 lb, specify a suitable diameter for the steel pin if it is to be made from SAE 1040 WQT 900. 4-21The required information is in the attachment. Part A) Draw a free-body diagram. Show the torque reactions at supports A and C in the correct direction for resisting the applied torque, T. From your free-body diagram, write the equilibrium equation for the torques. Express the torsional equation of equilibrium for the shaft in terms of TA, and TC. Part B) Express the internal torque in AB, TA, in terms of the internal torque in BC, TC to three significant figures. (i.e., TA= ___________ TC) Part C) Using your statics equation and compatibility equation developed in Parts A and B, assume that the maximum allowable stress occurs in either AB or BC, then calculate TA and TC based on this assumption. Check your assumption and confirm that τ = 100 MPa has not been exceeded in either member. Express your answer in N−m to three significant figures.1 300N forces on the pliers? 300N What forces are exerted on the bolt at E in the figure below as a result of the 30 mm 70 mm PIED PAR 30 mm D 30 mm 30 mm
- Questions - 6 Derive the equivalent spring constant for the case if attached in series . Prove - keq = ( k1k2/k1 + k2 )3-12 5) Use the method of sections to find the true magnitude and direction in bar DB of the truss. Hint( Joint C is in equilibrium) B A 45° 4' 4' D -100 lbs FREE BODY DIAGRAM LOADED SECTION True magnitude and direction of DB by section analysisSolve for Problem 2, when RN1 = 0145