铸造2011，Vol.60Issue(8)：759-764,6.
定向凝固简化空心叶片热应力数值模拟
Numerical Simulation of Thermal Stress During Directional Solidification of Simple Hollow Turbine Blades
摘要
Abstract
The thermal stress happened during the directional solidification of turbine blades may result in the residual stress, deformation and even cracks in the blades, and then the blades will be rejected. Using numerical simulation of thermal stress during the solidification of blades, people can obtain how the thermal stress changes, and then they can analyze and predict the positions and causing reasons of defects. In this paper the commercial software ProCAST was used to simulate the thermal stress during directional solidification of simple hollow turbine blades, and then to analyze the change tendency of thermal stress of the blades during the solidification. The wire-cutting residual stress measurement method was also used to get the residual stress of blades. The predictive results agreed well with the experimental results.关键词
热应力/数值模拟/叶片/定向凝固Key words
thermal stress/numerical simulation/turbine blades/directional solidification分类
矿业与冶金引用本文复制引用
洪耀武,孙长波,康进武,许庆彦,柳百成..定向凝固简化空心叶片热应力数值模拟[J].铸造,2011,60(8):759-764,6.基金项目
国家重点基础研究发展计划(973)项目(2005CB724105和2011CB706801) （973）
自然科学基金(10477010) （10477010）
国家高技术研究发展计划(863)项目(2007AA04Z141) （863）
国家科技重大专项(2009ZX04006-041-04)资助. （2009ZX04006-041-04）
