论文部分内容阅读
物体在共点力的作用下的平衡是静力学的基础。而动态平衡问题是较长出现的一类较难的问题。动态平衡:指通过控制某些物理量使物体的状态发生缓慢变化。这里重点是对“缓慢”的理解,缓慢是指在整个运动过程中物体始终处于平衡状态。动态平衡问题的分析方法:(1)解析法:对研究对象的任一状态进行受力分析,利用三角函数关系建立平衡方程,然后根据自变量(一般是角度)的变化确定应变量即力的变化。(2)图解法:对研究对象进行受力分析,再根据平
The balance of objects under the influence of a total force is the basis of statics. The problem of dynamic balance is a kind of more difficult problem appearing longer. Dynamic balance: refers to the control of certain physical quantities so that the state of the object changes slowly. The emphasis here is on “slow” understanding, slow refers to the object throughout the movement is always in balance. Dynamic equilibrium problem analysis: (1) Analytical method: Analyze the force of any state of the research object, establish the equilibrium equation by the relation of trigonometric function, and then determine the dependent variable (usually the angle) Variety. (2) Schematic: force analysis of the study object, then according to flat