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文章作者针对前人在气阀研究工作中不足之处,指出阀片运动是相当复杂的多自由度弯扭颤振并伴有频繁的倾侧撞击特征。为此,根据阀片上配置的弹簧不同,把颤振模型简化为连续弹簧力(即单个大直径弹簧)和离散弹簧力(即多个小圆柱弹簧),并建立了相应的运动微分方程。利用编制成的通用计算机程序,只要输入气阀结构参数、压缩机转速和气体力等,就可算出阀片在任何时刻的动态位移变形和应力分布。
In response to the shortcomings of predecessors in the research of the valve, the author of the article pointed out that the movement of the valve plate is a rather complex multi-degree-of-freedom bending and twisting vibration with frequent tilting impact characteristics. For this purpose, the flutter model is simplified to a continuous spring force (ie a single large-diameter spring) and a discrete spring force (ie a plurality of small cylindrical springs) according to different springs arranged on the valve plate, and a corresponding differential equation of motion is established. The use of compiled general computer program, as long as the input valve structure parameters, compressor speed and gas force, you can calculate the valve at any time dynamic displacement and stress distribution.