摊铺机振动梁结构动态特性设计研究

摊铺机是一种重要的筑路机械，其振动梁的动力学特性与摊铺效果有密切关系，本文基于动力学逆问题的基本思想，对摊铺机振动梁结构动态设计中的主要问题进行了深入的讨论，文中首先基于振动梁的有限元模型对振动梁的动力学特性的总体优化方案进行了设计，然后对各个设计参数的灵敏度进行了理论分析，得到了主要设计参数，在此基础上用人工神经网络技术对振动梁结构动态特性优化计算，数值计算表明了该方法是可行的、有效的。

Study on the Structural Dynamic Design of a Paver's Vibrating Bar

Paver is a kind of important road construction machine.Its performance highly depend on the dynamics of its vibration bar.Based on the principle of the dynamic inverse pro blem,this paper discussed in detail the main problems of structural dynamic design of a paver's vibrating bar.Firstly the paper advances a general optimization scheme of the dyna mics of a vibrating bar with FE model.Secondly,this paper analyzes theoretically the sensitivities of natural frequencies of the bar to its designing parameters and the main parameters are found.An artificial neural network is adopted to optimize the dynamics of the vibrating bar.The paper also provids a numerical example to show the effectiveness and the feasibility of the new method.