Optimal stiffener layout design for plate and shell structures under dynamic load based on the adaptive growth method

被引：0
|
作者：
Dong X. [1 ]
Ding X. [1 ]
机构：
[1] School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 14期
关键词：
Adaptive growth method (AGM); Dynamic load; Dynamic response; Plate and shell structures; Stiffener layout optimization;
D O I：
10.13465/j.cnki.jvs.2020.14.028
中图分类号：
学科分类号：
摘要：
The adaptive growth method (AGM) based on the growth fractal mechanism of branch systems in nature is a high-efficiency topology optimization method. The equivalent static load method (ESLM) was introduced to solve the dynamic response topology optimization of plate and shell structures under dynamic load. According to the boundary conditions of dynamic load, a mathematical model for the dynamic mobility optimization was established, and an iteration formula was derived. The stiffeners connected with the "seeding" was able to either grow or degenerate along the direction of the best overall mechanical property, and an optimum stiffeners layout was obtained finally. The results show that the main layout of stiffeners is the same under either static or dynamic loads. However, some small stiffeners are formed, which are close to the loading point and parallel to the main stiffeners, so as to more favorably transfer and share the load. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：194 / 200
页数：6
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