基于Isight的橡胶动力吸振器参数化优化

Parametric Optimization of Rubber Vibration Absorber Based on Isight

为满足动力吸振器系统固有频率性能要求,应用Isight集成软件平台进行有阻尼橡胶动力吸振器结构尺寸优化设计。以圆筒形橡胶元件为例,通过数值仿真研究橡胶动力吸振器质量块质量不变时,橡胶元件结构尺寸变化对振动系统固有频率的影响,结果表明动力吸振器系统固有频率随圆筒形橡胶元件结构尺寸的变化而改变。以圆筒形橡胶元件外圆半径、高度和质量块外径作为优化设计变量,以橡胶动力吸振器固有频率为优化目标,建立优化设计数学模型,基于Isight集成平台对橡胶动力吸振器尺寸进行优化。结果表明,优化所得动力吸振器系统固有频率值与目标值吻合较好,误差为4.6%,并通过产品实验验证了优化方法的有效性。

To meet the requirements of the natural frequency performance of the dynamic vibration absorber system, the optimum design of the structure size of the damping rubber vibration absorber was carried out by using the Isight integrated software platform. With the cylinder shaped rubber element as an example, simulation was conducted to study the influence of structure size change on the natural frequency of rubber vibration absorber when the quality of the mass of the rubber dynamic vibration absorber which was used to block at constant, and the results showed that the natural frequency of the dynamic absorber system changeds with the change of the structure size of the cylindrical rubber components. In cylindrical rubber component＇s the outside radius of the circle, the height and the mass outside radius as optimization design variables, and the rubber vibration absorber natural frequency as optimization objectives, an optimization design mathematical model was established, based on the Isight integrated platform for the size of the rubber vibration absorber which is used to optimize, and the results showed that the natural frequency of the dynamic absorbex~ system was in good agreement with the target value, the error is 4. 6%, and the effectiveness of the optimization method was verified by the experimental results.