针对航空航天环境医学多因素耦合研究欠缺、复合环境模拟实验设备缺乏等问题,本文基于模块化设计思想,研制了低压舱,并与已有的超重平台耦合,搭建了低压超重复合实验平台。通过理论分析、仿真建模等方法,对该低压舱的硬件、软件进行了设计与选型,并对耦合低压舱的低压超重复合实验平台进行了测试。结果表明:在低压舱体积为0.09 m3、重量小于20 kg的约束条件下,低压舱的结构安全系数为1.2;实验平台运行平稳,稳定性不受超重过载影响,仅受设定的压力值的轻微影响,且在各个工况下压力的波动范围和相对误差有限。This paper addresses the issues of insufficient multi-factor coupling research in space environmental medicine and the lack of integrated environmental simulation equipment. Based on modular design principle, a low-pressure chamber was developed and integrated with an existing overload simulated platform to establish a low-pressure and overload integrated environment simulation platform. By theoretical analysis and simulation modeling, the hardware and software of the low-pressure chamber were designed and selected, and the performances of the low-pressure and overload integrated environment simulation platform were tested. The results show that under the constraints of the low-pressure chamber with a volume of 0.09 m³ and a weight of less than 20 kg, the structural safety factor of the chamber is 1.2. And its stability was unaffected by overload conditions and just influenced by the given pressure values slightly, and the fluctuation ranges and relative errors of pressure were limited.
为满足阻尼可调汽车减振器对测试台架频率响应快和精度高的要求,设计了一种电液伺服式减振器测试台架。该测试台架电控部分基于x PC Target快速控制原型思想,利用上下位机联合工作分别实现监控和控制。利用该测试台架对阻尼可调汽车减振器的性能进行了测试,结果表明,该测试台架可完全替代现有的机械式测试台架,且能够满足阻尼可调汽车减振器对测试台架响应和精度的要求。
