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用有限差分法做机构的运动分析,只需要对所分析的机构编写出各构件相对位置分析的子程序,速度和加速度参数则用有限差分公式来计算。这样就可以编写出适用于各种不同机构速度、加速度分析的通用程序。用有限差分法还可求出机构的等效力(矩)和等效质量(转动惯量),从而可求解机构在已知外力作用下的真实运动。同样也可以编写出适用于各种不同机构的求等效构件运动规律的通用程序。
Using the finite difference method to do the motion analysis of the mechanism, only the subroutine of relative position analysis of each component must be prepared for the analyzed mechanism, and the parameters of velocity and acceleration are calculated by the finite difference formula. This will allow you to write a general-purpose program for speed and acceleration analysis in a variety of different organizations. Using the finite difference method, the equivalent force (moment) and the equivalent mass (moment of inertia) of the mechanism can also be calculated, so that the true movement of the mechanism under the known external force can be solved. The same can also be prepared for a variety of different agencies seeking common law of motion of the general procedure.