水下训练航天服重心浮心间距的一种试验测试方法

A Test Method of Interval Between Centers of Gravity and Buoyancy of Underwater Training Spacesuit.

目的测试水下训练航天服(含受试者)的重心、浮心间距。方法水下试验中,采用移动活动配重的方法改变服装前倾角度,通过图像采集与处理,计算出水下训练航天服的重心、浮心间距。结果某水下训练航天服的重心、浮心间距为3.52 cm。结论本文提出了一种水下训练航天服重心、浮心间距的测试方法,首次对服装中性浮力状态进行了定量分析。建议水下训练航天服各运动组成部分应分别达到中性浮力状态,并提出了进一步的研究思路。

Objective To test the interval between centers of gravity and buoyancy of underwater training space- suit （including the training subject）. Methods The pitch angle of the training spacesuit will change when mov- ing the portable lead mass during underwater experiments, so the interval can be calculated by analyzing the images taken before and after the lead mass＇ s moving. Results The interval between the two centers in one un~[erwater spaeesuit is 3.52 era. Conclusion The test method is the first quantitative analysis of the neutral buoyancy status of the underwater training spacesuit. It is suggested that every movable part of the training spacesuit should be designed to achieve the neutral buoyancy status for the better weightlessness environment simulation, and some ideas for further researches are Drooosed in the end.