Saturday, September 17, 2022
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:成语“刻舟求剑”所描述的故事反映了这样一条真理:选择不同的参考系...
Saturday, September 17, 2022
问题:有对称轴的截面其形心必在此对称轴上,故该对称轴就是形心主轴。...
Tuesday, January 7, 2025
问题:位移法求解的条件是什么?怎样判断一组位移分量是否为某一问题的真实...
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:在临界载荷作用下,压杆既可以在直线状态保持平衡,也可以在微弯状态...
Sunday, September 11, 2022
Saturday, September 17, 2022
Sunday, September 11, 2022
问题:弹性力学研究弹性体由于受外力作用、边界约束或温度改变等原因而发生...
Saturday, September 17, 2022
问题:低温下的<sup>4</sup>He、光子气和电子气等服从玻兹曼...
Monday, September 12, 2022
Sunday, September 11, 2022
问题:9形函数在单元上节点上的值,具有本点为()。它点为零的性质,并且...
Saturday, September 17, 2022
问题:边界条件表示边界(),或()之间的关系式。分为()、应力边界条件...
Saturday, September 17, 2022
问题:按应力求解平面问题,最后可以归纳为求解一个应力函数。...
Wednesday, August 2, 2023
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022