摘要
用静力学平衡方程解题是静力学部分的重点内容,解题时应注意这样几个关键问题:首先研究对象要选对,受力分析要正确,受力图要画对;其次在受力图上建立适当的坐标系,从问题出发列出简便易解的平衡方程;最终求出未知量并检验其正确性。
Using static equilibrium equation to solve problems is the important content of the static,solving problems should pay attention to these few key issues:First of all to choose the right subjects,stress analysis to be correct,forced figure to be correct;Secondly,to establish the appropriate coordinate system on forced figure,starting from the problem to list the balance equation that simple and easy to solve;eventually find the unknown quantity,and test its accuracy.
出处
《佳木斯教育学院学报》
2011年第3期468-469,共2页
Journal of Jiamusi Education Institute
关键词
平衡方程
受力图
balance equation
forced figure
