Method of Virtual Work - 4 Bar Linkage

Fully Explained Example Problem. Find Torque for the 4 Bar Linkage to maintain Static Equilibrium. Apply the Method of Virtual Work and Vector Loop Method to find Kinematic Coefficients. Bookmark my Machinery and Mechanisms Playlist:    • Machinery and Mechanisms   This problem fits into your textbook in sections called Static Force Analysis, Conditions for Equilibrium, Applied and Constraint Forces, Method of Virtual Work for a 4 Bar Mechanism, Loop Closure Equations and Kinematic Coefficients for a four bar linkage. CHAPTERS 0:00 What is Virtual Work? 5:06 Why use Virtual Work? 6:58 Vector Loop Equations 9:23 How to find Kinematic Coefficients? 14:29 Find Angles 20:01 Virtual Work Equation Compute the magnitude and direction of the torque that must be applied to link 2 to maintain static equilibrium at the posture indicated.