摘要
通过使用增强拉格朗日法模拟螺栓联接接触问题,并进行模态计算,所得的计算结果与模态试验结果有较好的一致性。对算例模型全参数化建模,分析影响螺栓联接结构抗弯刚度参数的灵敏度。最后,通过响应面方法对螺栓联接结构进行优化,使结构的弯曲刚度增加了0.92%。研究表明,在结构材料等参数不变的前提下,通过合理的进行螺栓联接结构设计,能够提高结构的弯曲刚度。
By using augmented lagrange method to simulate the contact issue of bolted structure, and modal calculation, the results have good agreement with experiment＇s. The sensitivity analysis about bolt joint structure stiffness parameters is studied.Finally, the bolt joints structure is optimized by the method of response surface. Then the bending stiffness of the structure has increases 0.92% through the structure optimization.The research shows that when structural materials and other pa-rameters is constant, the bending stiffness will be increased by reasonable design about the bolt joint structure.
出处
《航空制造技术》
北大核心
2014年第3期86-89,共4页
Aeronautical Manufacturing Technology
基金
航空科学基金(50905146)资助
关键词
刚度
模态试验
灵敏度
响应面
Stiffness
Modal test
Sensitivity
Re-sponse surface
