人-梁相互作用动力学模型研究

详细信息

MODELING OF THE DYNAMIC INTERACTION OF HUMAN OCCPUPANTS AND BEAM

(1. College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. School of Mechanical, Aerospace and Civil Engineering, the University of Manchester, Manchester, UK)

摘要: 该文用一个具有分布质量、阻尼和刚度的动力学模型来表示附着于梁上的人体，利用Lagrange方程建立了有限个人留驻在梁上(即人-梁相互作用动力学模型)的振动微分方程。分析了人-简支梁联合体系的动力学特征，展现了人对简支梁动力特性的影响。并将数值模拟结果与英国学者的实验结果相比较，验证了该文所建立的人-梁相互作用动力学模型的合理性和正确性。
- 人-梁相互作用 /
- 人体动力模型 /
- 动力微分方程 /
- 数值模拟 /
- 动力特征
Abstract: A human with variable mass, stiffness and damping distributions is placed on a beam. A new dynamic model for human-beam coupled system is established by means of the Lagrange equation. Based on the presented model, this paper investigates the influence of human occupants on dynamic characteristics of a slender simply supported beam. Compared with the experimental results made by British scholars, it is demonstrated that the new dynamic model is correct and reasonable.
- human-beam interaction /
- human-body dynamic model /
- dynamic differential equation /
- numerical simulation /
- dynamic characteristics