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A SHAPE MEMORY ALLOY ACTUATED SATELLITE ISOLATION VALVE

机译:形状记忆合金致动卫星隔离阀

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Pyrotechnic actuated valves are currently used extensively in satellite chemical propulsion systems. These valves serve as isolation valves. They are singleuse, of very high reliability, and used to initiate a propulsion system at the start of its propulsion mission or to “safe” it at the end of its mission life. rnA new type of valve is currently in its initial stages of development which aims to replace the pyro with a Shape Memory Alloy (SMA) actuator. This valve would give the same isolation performance, would work at high temperature up to 100°C, could be much slower limiting mechanical shocks, and be interchangeable with pyro-valves making substitution simple. rnThis paper outlines the scope of this work.
机译:烟火致动阀目前广泛用于卫星化学推进系统中。这些阀用作隔离阀。它们是一次性的,具有很高的可靠性,并且用于在推进任务开始时启动推进系统或在任务寿命结束时对其进行“保护”。 rn一种新型的阀门目前正处于开发的初期阶段,该阀门旨在用形状记忆合金(SMA)致动器代替焦炉。该阀具有相同的隔离性能,可在高达100°C的高温下工作,可能会更慢地限制机械冲击,并且可与热风阀互换使用,从而简化了更换过程。 rn本文概述了这项工作的范围。

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