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引 言 在压缩机中经常损坏的一个部件是气阀,而气阀的损坏绝大多数是由金属的疲劳造成的。采用某种方法预测气阀在运行条件下的寿命是很重要的。预测气阀寿命的一种方法是用计算机模拟气阀动态以求得气阀的应力水平,再将应力水平和疲劳寿命联系起来。
Introduction One component that is often damaged in compressors is a gas valve, while the majority of valve damage is caused by metal fatigue. It is important to use some method to predict the life of the valve under operating conditions. One way to predict the life of a valve is to simulate the dynamics of the valve with a computer to find the stress level of the valve and then relate the stress level to the fatigue life.