Using a unified viewpoint system, this paper systematically demonstrates two general forms and other particular forms of the angular momentum theorem of the particle system with respect to the static references system(namely the inertial reference system). And then it introduces the concept of "space center of moment" and "noumenal center of moment", thus resulting in different forms of the angular momentum theorem of rigid bodies in planar motion.
The 3 dimensions non linear dynamical model of inclined cable in inertial reference system is set up with geometrical non lineariy. Based on the Newton method a set of partial difference equations are given,and then are diverted into a set of ordinary differences equations through Galerkin method.
The former has variation function,the latter is used generally,both not only can overcome classical mechanical one limitation of absolutism motion concept with absolute inertia reference system,but also include and unify all theory of classical mechanics.
After the general transformation formula of δQ is derived,together with the temperature transformation formula T=T0v1-β2,it can be established that the total entropy change of a general thermodymmic process if positive and independent of the inertial reference frame we choose,i.
By using the shift matrix to Hanavan human body model,segment inertial parameter of the body segment relative inertial reference frame of human body in motion is produced. At the same time,according to Varignon theorem and parallel-ax theorem,human body inertial parameters in motion,such as human body center of mass and principle moment of inertia,are then calculated,which could be quite a reliable evidence of quantitative analysis offered to the research of kinesiology.