A dynamic analysis of the upper extremity: planar motions.

摘要: Free body diagrams of arm segments show what forces are involved in planar motions. To represent equilibrium D'Alembert's principle is applied graphical vector diagrams. From these derived equations for determining joint force and torque reactions to weight inertia. The make it clear that accelerations physical constants needed. A acceleration diagram shows how linear can be determined from angular accelerations, turn by finite differences displacement time data. Experimental methods kinematic data described. analysis rationale then used establish an algorithm programmed computation digital computer. output information presented a sample set curves one the several types motions treated.