摘要
现代优化设计导致周期变截面梁广泛存在于工程实践,周期变截面梁的刚度分析方法是工程人员研究的热点问题。该项研究基于边界位移等效和截面转角等效原理,运用均匀化方法和Timoshenko梁理论,并借用ANSYS有限元分析软件,推导出周期变截面梁的等效抗弯刚度和等效剪切刚度,提出了一种周期变截面梁刚度分析的新方法。并针对工程实例,通过试验和方法的计算,一致的结果验证了提出的方法是一种精度较高、可行的周期变截面梁刚度分析工程方法。
The modem optimization design leads to the widespread use of periodic variable cross-section beam in engineering practice, and the stiffness analysis of periadic variable cross-section beam is now a hot research issues of the engineers. In. this investigation, the homogenization method and Timoshenko beam theory were used to derive the equivalent bending and shear stiffness of the periodic variable cross-section beam via ANSYS, which was based on the equivalence principle of boundary displacement and cross-section comer. An application case was calculated by this new method. Through the comparison of the results of the test and the calculation using the method above, the accordant results verify that the calculation precision is high enough to meet the demand of project design.
出处
《机械设计与制造》
北大核心
2014年第1期21-24,共4页
Machinery Design & Manufacture
基金
江苏省自然科学基金(BK2011075)
作者简介
作者简介：刘洋，（1989－），男，江苏连云港人，硕士研究生在读，主要研究方向：风力机叶片设计研究；
范钦珊，（1937－），男，江苏如皋人，教授，博士生导师，主要研究方向：工程力学研究与教学
