摘要
根据三峡升船机最新设计报告,采用有限元软件ANSYS构建了升船机系统有限元模型,包括承船厢、提升钢索、滑轮组、平衡重、厢内水体、驱动机构和刹车机构;通过数值模拟,对升船机系统进行了模态分析及动态响应研究,内容包括升船机系统的流固耦合模态及其在各种工况(起动、刹车、事故)下的动态响应和影响因素分析,如弹簧刚度、误载水深、阻尼、承船厢的位置等。计算结果表明:对于升船机这样一个复杂系统,该文所建立的有限元模型及数值算法是合理的,其结果可为升船机系统整体设计提供必要的参考。
Based on the latest design report of the Three-Gorges ship lift, a finite element model of the ship lift system is built using finite element code ANSYS. The model is composed of a chamber, lifting cables, pulleys, counters, water in the chamber, driving mechanisms and braking mechanisms. Modal and dynamic analyses were carried out using numerical simulation method. Modes of fluid-solid coupled system and dynamic responses under various working conditions including starting, braking and accidents were included. The parameters, such as spring stiffness, over-loading water, damping and the chamber position, were also discussed. The results show that the finite element model and the numerical method are reasonable for this kind of complicated system. It can provide necessary references for the integral design of ship lifting system.
出处
《工程力学》
EI
CSCD
北大核心
2007年第9期179-187,共9页
Engineering Mechanics
关键词
三峡升船机
有限元模型
数值模拟
流固耦合
模态分析
动态响应
the Three-Gorges ship lift
finite element model
numerical simulation
fluid-solid interaction
modal analysis
dynamic response
