理论力学教学中斜坡滑动摩擦偏向力偶探讨

对于斜面支承的物体,其底面支承约束反力并不是呈现均匀分布状态,其等效集中荷载存在一定的偏心距.对其进行较为详细的受力分析有宜于学生对平衡状态条件的理解,并且利用这种斜面对物体支承约束反力分布的不均匀特性,研究斜面物体滑动过程中所产生的偏转力偶,较好地诠释了斜坡运动物体的曲线轨迹产生的原因.

Study and Analysis of the Bias Couple of Sliding Object on Slope

The support constraint forces on the bottom of the object on slope are not present uniform distribution.Its equivalent concentrated load has a certain eccentricity.The more detailed stress analyses are appropriate for students to understand the conditions of equilibrium. More over, utilizing this kind of uneven distribution characteristic of sttpporting constraint force, we can study the bias couples while the object sliding on the slope, and acquire a better interpretation about the trajectory curve produced by the object on the slope.