国外公司在其系列增压器中开始采用整体式压气机叶轮。
Foreign company begins to adopt integrated compressor impeller in their series of turbo-chargers.
本文论述了对整体式压气机叶轮经超速试验后的应力分布进行计算的弹塑性有限元法，及确定叶轮最佳超速转速、预应力处理的效果的方法。
The finite element method for analyzing prestress distribution of integrated compressor impeller after spin test is discussed. The best maximum spin speed and the effect of prestress are determined.
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