关键词: 振动与波, 多点激励, ANSYS, 圆柱壳, 均方根速度, 优化设计

Abstract: The paper realized Optimization design of cylindrical shells under multi-excitations based on discrete variables in ANSYS. In the premise of not changing structure parameter, adopted APDL language to program, location and phase of three simple harmonic excitations was designed variable, distance of excitations was restrict term, and shell radial of average square root velocity was objective function. Three layer optimized project was designed, then the most excellent design in location and phase of multi-excitations which minimized vibration of shell was achieved. The results showed optimized design was effective, which can provide new approach of controlling vibration in underwater great aircraft.