大深度载人潜水器钛合金框架试验研究

对大深度载人潜水器来说,框架是潜水器的设备载体,不仅要保证框架在各种使用工况下其强度满足要求,而且还要保证框架具有合理的刚度,保证设备、电缆液压管路的正常使用.对框架进行试验验收是检验框架安全性最为重要的环节.由于框架是空间结构,布置的大大小小上百个设备都作用在框架上,在试验过程中对这些设备进行完全载荷模拟和框架变形的测量相当困难.在此之前,我国还没有进行过类似大深度载人潜水器钛合金框架试验.本文的主要目的是介绍和总结这次框架试验.本文所涉及的内容包括载荷的模拟方法,应力、变形的测量方法、试验中可能出现的安全问题及其解决办法,试验岗位的配置,试验的后处理任务等等.同时,本文将试验结果与理论分析进行了比较,对大深度载人潜水器框架结构的安全评估等内容进行了探讨,可供以后的类似试验作为参考依据.

Experimental study on the titanium framework of deep Human Occupied Vehicle

For a deep sea Human Occupied Vehicles(HOV) with large depth of submergence,framework is the structural basis of equipments.The framework should have enough strength and rigidity in any working conditions.An experiment research to simulate the working conditions of the framework is one of the most important measurements to verify the service reliability.Due to the 3-demension layout of framework,to simulate hundreds of equipments is very difficult.It is the first time to test such a type of structure in China.The main purpose of this paper is to summarize the test experiences.Those experiences include the simulation method of loads,measurement methods of strain,deflection and loads,safety measurements,post-processing of the test results.Safety evolution method of framework of deep sea HOV is also discussed.This test research can be used as a reference for such type of tests.