CAJ | 학술논문

利用有限元软件ANSYS／LS—DYNA，对光滑试件和凸包形、凹槽形表面形态的45号钢试件的耐冲蚀性能，进行了三维数值模拟，计算冲蚀磨损过程中等效应力的变化情况。结果表明，试件数值模拟的冲蚀情况与试验吻合良好。这说明选用适当的ANSYS／LS—DYNA单元类型和设置合理的参数，完全可以实现对光滑试件和两种不同的表面形态试件的耐冲蚀性能的数值模拟，本文对于研究表面形态耐冲蚀机理和进行冲蚀磨损预报有一定的借鉴意义。
이용유한원연건ANSYS／LS—DYNA，대광활시건화철포형、요조형표면형태적45호강시건적내충식성능，진행료삼유수치모의，계산충식마손과정중등효응력적변화정황。결과표명，시건수치모의적충식정황여시험문합량호。저설명선용괄당적ANSYS／LS—DYNA단원류형화설치합리적삼수，완전가이실현대광활시건화량충불동적표면형태시건적내충식성능적수치모의，본문대우연구표면형태내충식궤리화진행충식마손예보유일정적차감의의。
In this study, the main general - purpose finite element software ANSYS/LS - DYNA was used. Three - dimen- sional numerical simulations were carried out. It is the simulation on erosion - resistance of the smooth specimens and groove shape, convex surface configuration. Equivalent stress was calculated during the process of erosion. The results turn out to be that the equivalent calculations match actual measured wear loss very well. It is shows that the selection of appro- priate ANSYS/LS- DYNA element types and the set reasonable parameters, can achieve smooth, groove, and convex sur- face configuration of the numerical simulation. By using the software ANSYS/LS - DYNA in this paper, equivalent stress peak value of the smooth, groove, and convex surface configuration were got. It can be used as a great reference for the study on erosion mechanism of surface configuration and the prediction of the erosion.