Appendix D: User Instructions for Chapter 7 MATLAB® Files

D.1 Planar Four-Bar Mechanism

The Appendix D.1 folder (which is available for download at includes the MATLAB file Dynamic_Planar_4Bar.m for the dynamic force analysis of planar four-bar mechanisms*. To conduct a dynamic force analysis, the user specifies the mechanism link dimensions, coupler force and follower torque gravitational constant, center of mass vectors, link masses, link mass moments of inertia, and the crank motion parameters in this file. Values are specified for link variables W1, V1, G1, U1, L1, the coupler force Fp1, the follower torque Tb0, the gravitational constant g, the center of mass vectors R1, R3, and R7, link ...

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