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力学与实践 ›› 2004, Vol. 26 ›› Issue (3): 0-0.doi: 10.6052/1000-0992-2003-235

• 专题综述 •    

水下模拟失重动力学研究综述

冯庆义 李俊峰 王天舒   

  1. 清华大学工程力学系 清华大学工程力学系 100084 清华大学工程力学系
  • 收稿日期:2003-06-09 修回日期:1900-01-01 出版日期:2004-06-10 发布日期:2004-06-10

RESEARCH ON DYNAMICS OF UNDERWATER WEIGHTLESSNESS SIMULATION

  • Received:2003-06-09 Revised:1900-01-01 Online:2004-06-10 Published:2004-06-10

摘要: 水下模拟失重方法是国外20世纪60年代发展起来的地面模拟失重的有效方法,在载人航天 中发挥了举足轻重、不可替代的作用;水下模拟失重动力学是水下模拟失重方法的理论基础. 简要概述了水下模拟失重方法的产生背景、原理、发展和优缺点;综述了水下模拟失重 动力学的国内外研究现状,展望了水下模拟失重动力学今后的发展趋势.

关键词: 失重模拟, 水下模拟失重, 人体动力学, simulation, dynamics of human body

Abstract: Underwater weightlessness simulation, developed overseas from the 1960s, is an indispensable training method for astronauts on the ground. Theoretical basis of this method is the dynamics of the underwater weightlessness simulation, which can provide the theoretical direction and the practice support. There are certain inherent problems in this method, such as the water drag, deviation between the center of gravity and the center of buoyance, the change of the buoyance, and so on. Consideration of these factors in the application is necessary to attain a high-fidelity simulation. The theoretical analysis, mathematical simulation and physical test are the useful ways, which can indicate the underlying principles for the underwater weightlessness simulation, answer the theoretical problems in practice and provide effective measures to attain high-fidelity simulation results. This article provides a schematic introduction on the underwater weightlessness simulation, outlines the developing background, basic principles, progresses, advantages and disadvantages of underwater weightlessness simulation, summarises the current research of dynamics of underwater weightlessness simulation both in China and abroad, and finally points out the trends of dynamics research for underwater weightlessness simulation in the future.

Key words: weightlessness simulation, underwater weightlessness, simulation, dynamics of human body