摘要
针对一种额定角动量为68 Nms的飞轮,以飞轮轮缘响应相对于基础激励输入的加速度传递率为优化目标,以轮体转动惯量、几何尺寸、强度、刚度、质量等为约束条件,对截面形状为工字型的轮辐和轮缘几何尺寸参数的设计提出了优化方法。该优化方法基于有限元法建立飞轮轮体模型,同时利用多岛遗传算法对飞轮轮体进行了多学科设计优化研究。结果表明,在满足设计要求的前提下,轮缘加速度传递率得到明显降低。该方法对提高航天器飞轮轮体结构设计效率具有一定的现实意义。
An optimization design method for the geometrical parameters of wheel spoke, consisting of I-shaped cross section and wheel flange, was proposed for flywheels. A flywheel with 68Nms nominal angular momentum was taken as an example. In the optimization, the constraint conditions were the moment of inertia of the wheel body, geometrical parameters and strength, stiffness and mass of the flywheel. And the goal of the optimization was to minimize the acceleration transmissibility (defined as the acceleration rate) of the rim output response to the input of base-excitation. The finite element method was used to develop the model and the Multi-Island Genetic Algorithm (MIGA) was employed to carry out the multi-disciplinary design optimization. It is demonstrated that by using the proposed method, the acceleration transmissibility is reduced significantly on the premise of meeting the design requirements. The proposed method is able to improve the design efficiency for spacecraft flywheels.
出处
《噪声与振动控制》
CSCD
2016年第2期56-60,共5页
Noise and Vibration Control
关键词
振动与波
飞轮
有限元法
多岛遗传算法
优化设计
vibration and wave
flywheel
finite element method
MIGA
optimization design
作者简介
丁泉惠（1984-）,男,黑龙江人,硕士生,研究方向为振动分析与控制.E-mail：dingquanhui@163.com
华宏星,教授,博士生导师.
