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以受横向简谐激励机械载荷和热载荷共同作用的、金属基陶瓷功能梯度材料圆柱曲板为研究对象,利用有限元软ANSYS对两边固支两边自由的功能梯度材料柱面曲板进行建模,并对其在热环境下进行模态分析。这里采用了比较适合薄板的SHELL99单元模型,给出不同几何和物理参数条件下FGM圆柱面曲板前8阶振动模态图,得到固其有频率,并且对前8阶模态做模态进行分析,结果发现圆柱曲板的模态振型主要有横向和扭转振动,其中前两阶模态以横向振动为主。分析结果为进一步的理论研究、对结构设计和参数优化提供了有效的依据。
The cylindrical curved plate with functionally graded material of metal-based ceramic subjected to transverse simple harmonic excitation of mechanical load and thermal load is taken as the research object. The free-form functional graded material cylindrical plate with both sides clamped and clamped is modeled by finite element software ANSYS , And its modal analysis in thermal environment. The SHELL99 element model which is more suitable for the thin plate is adopted here. The vibration modes of the first eight steps of FGM cylinder cylindrical cylinder with different geometrical and physical parameters are given, the frequency of solidification is obtained, and the mode of the first 8 modes is analyzed The results show that the modal shapes of cylindrical curved plate mainly include transverse and torsional vibration, of which the first two modes are mainly transverse vibration. The result of the analysis is a further theoretical study, which provides an effective basis for structural design and parameter optimization.