中国机械工程2013，Vol.24Issue(13)：1765-1772,8.DOI:10.3969/j.issn.1004-132X.2013.13.013
低速风洞层流风场中WDPSS—8机器人系统索系流固耦合效应的动静力特性分析
Analysis of Dynamic and Static Properties of Fluid—structure Interaction for Wires of WDPSS—8 Robotic System in Streamline Flow Field of Low—speed Wind Tunnels
摘要
Abstract
The flexibility of wires in a wire—driven parallel suspension system for low—speed wind tunnels at the static experiments of the vehicle model will lead to the coupled behavior of wind—induced vibrations of wires which will make the posture of the end—effector deviate the desired values.In order to implement real—time compensation of the deviations of the postures,in terms of the WDPSS—8 system,dynamic and static properties of two—way coupled fluid—structure interaction for wires in the streamline flow with the wind speed of 35 meters per second were investigated on the basis of ANSYS/CFX software.The investigations were finished when the attitude angles of the vehicle model were changed one by one,under the assumption that wires were satisfied with the theory of linear elasticity and subjected to axial tensions.The results show that it is expectable that there exists much less aerodynamic interference of wires compared with that of traditional strut support; however the changeable values of the postures of the end—effecor should be calibrated by real—time compensation owing to 3—dimensional complicated vibrations of wires with the bending along the wind.In addition the vibration suppression of wires as well as flow control of the connections between the vehicle model and wires should be given; at the same time,since the axial stress of wires will change as well,the acquirement of aerodynamic forces/torques by measuring the tension of wires is not feasible.关键词
低速风洞/静态实验/绳牵引并联机器人/索系/双向流固耦合Key words
low— speed/ static experiment/ wire— driven parallel robot/ wires/ two— way coupled fluid—structure interaction分类
机械制造引用本文复制引用
郑亚青,焦少妮,杨永柏..低速风洞层流风场中WDPSS—8机器人系统索系流固耦合效应的动静力特性分析[J].中国机械工程,2013,24(13):1765-1772,8.基金项目
国家自然科学基金资助项目(50805054) （50805054）
