Finite Element Strength Calculation System of a Centrifugal Impeller
Qiu Kai  Xu Zili  Wang Shangjin   Zhang Yizhong
(Xi'an Jiaotong University 710049)

Abstract:  In this paper a three dimensional finite element analysis system was developed to
compute stress of a centrifugal impeller, aided by a pre-process system, including automatic mesh generation and boundary constraints applying, and so on. Elastic force caused by clamp boundary between the impeller and axis was calculated and applied on elements there as a boundary condition. Stress of an actual three dimensional flow disigned impeller was calculated using the above system and effects of several conditions were analyzed.
Keywords: cenififugal impeller, finite ellement method, stress.