Genetic algorithm is used as a tool for sound radiation minimization problems for determining the optimal dimensions of the stamped rib in a plate.
冲压筋改变了板的固有频率和振型 ,从而能显著改变其振动和噪声特性 。
The rotated ramjet is a new conceptive engine based on the ram-compressed technology, which has no blade and no piston but has a ram-compressed rotor.
旋转冲压发动机是一种没有叶片和活塞的基于冲压压缩技术的新概念发动机,气体的压缩主要是通过运动激波压缩来完成,通过对运动激波压缩过程的理论分析并与发动机冲压转子盘腔冷态流场进行数值模拟结果进行对比,印证了旋转冲压发动机中运动激波压缩假设的正确性。
The rotating ramjet is a new conceptive engine based on the ram-compressed technology without any blade or piston but only a ram-compressed rotor is used as its moving core component.
旋转冲压发动机是一种没有叶片和活塞的基于冲压压缩技术的新概念发动机,冲压转子是其惟一的核心转动构件。