The main source for structural nonlinearity is summarized, and a FE model for the primary mirror subassembly of a collimator is established on the basis of contact theory.
介绍了产生结构非线性的主要来源,并在接触理论的基础上对主反射镜组件进行了合理的有限元建模。
Arched corrugated metal roof exhibits strong geometrical nonlinearity when loaded, which has often been ignored in structural design.
金属拱型波纹屋盖结构在力学性能上具有很强的几何非线性,结构设计必须考虑几何非线性的影响。
For lower inflow dynamic pressures, the LCO of the delta wing is caused by structural geometric nonlinearity, and the numerical results correlate well with experimental data.
在小来流动压情况下,结构几何非线性引起了切尖三角翼的LCO,计算结果和试验值吻合较好。
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