NATIONAL CHUNG CHENG UNIVERSITY Department of Mechanical Engineering 4201002 Applied Mechanics (I) Fall 2013 (102 A)

Solution of HW16

1. Using the principle of virtual work, determine the force developed in the spring required to keep the 10 lb uniform rod AB in equilibrium when θ= 35°.

NATIONAL CHUNG CHENG UNIVERSITY Department of Mechanical Engineering 4201002 Applied Mechanics (I) Fall 2013 (102 A)

Solution of HW16

2. The crankshaft is subjected to a torque of M=50 lb.ft. Using the principle of virtual work, determine the vertical compressive force F applied to the piston for equilibrium when θ= 60°.

NATIONAL CHUNG CHENG UNIVERSITY Department of Mechanical Engineering 4201002 Applied Mechanics (I) Fall 2013 (102 A)

Solution of HW16

3. The spring is unstretched when and has a stiffness of k=1000 lb/ft. Determine the angle for equilibrium if each of the cylinders weighs 50 lb. Neglect the weight of the members. The spring remains horizontal at all times due to the roller.

Hw 16 20140110