基于ABAQUS二次开发的直升机桨根快速建模方法及应力分析  

Rapid Modeling Method and Stress Analysis on Helicopter Propeller Root Based on ABAQUS Secondary Development

作　　者：刘俊增 曾玖海[1] Liu Junzeng;Zeng Jiuhai(China Helicopter Research and Developent Institute,Tianjin 300300,China)

机构地区：[1]中国直升机设计研究所,天津300300

出　　处：《航空科学技术》2023年第5期74-79,共6页Aeronautical Science & Technology

摘　　要：随着新构型直升机技术的发展,对直升机桨叶有限元仿真技术的要求也越来越高。参数化建模仿真方法能够降低有限元法仿真技术的使用难度,对桨叶快速化、精细化设计具有重要意义。本文基于ABAQUS二次开发方法构建了一种适用于直升机桨叶根部段的快速建模方法,在有限元建模过程中参数化建立材料属性和接触属性,完成直升机复合材料桨叶根部段的快速化仿真分析。利用该方法对某直升机桨根进行应力计算,与常规建模方法相比,快速建模方法有效提高了建模效率,保证了仿真结果的一致性。快速建模方法仿真结果与常规建模方法仿真结果相比应变误差不超过1%,快速建模方法与试验结果相比应变误差不超过10%,常规建模与试验结果应变误差不超过91%,验证了该方法的可靠性。In order to improve the modeling efficiency of helicopter composite propeller root and ensure the consistency of simulation results,based on ABAQUS secondary development method,a rapid modeling method for helicopter propeller root segment is constructed in this paper,which can quickly establish material properties and contact properties in the process of finite element modeling.This method is used to calculate the stress of a helicopter propeller root.Compared with the conventional modeling method,the rapid modeling method can improve the modeling efficiency effectively.The strain error of the simulation results of the rapid modeling method is less than 1%compared with the simulation results of the conventional modeling method,and less than 10%compared with the experiment results,which verifies the reliability of the method.

关 键 词：直升机 复合材料桨叶 二次开发 快速建模方法 建模效率 

分 类 号：V215.5[航空宇航科学与技术—航空宇航推进理论与工程]