摘要
风电齿轮箱箱体轻量化设计对降低风机成本、提升风机功率密度及结构力学性能具有重要意义。受极端风况及气候条件影响,箱体长期遭受来自传动系统的无规律载荷冲击,导致优化设计过程中面临工况覆盖不全面、模型简化不合理以及材料利用率低等问题;因此,在考虑多种极端服役工况作用与模型合理等效的基础上,对箱体进行轻量化设计。基于模态试验对模型准确性验证的前提下,以箱体最小质量为优化目标,不同极限工况下箱体最大应力为约束条件,对箱体组成部件中主壳体、过渡板和后壳体进行了多工况优化设计,并对改进前后箱体性能进行对比。结果表明,优化后箱体的质量减小了4.7%(549.8 kg),不同工况下最大位移和应力均大幅度减小。轻量化设计的同时提高了箱体的强度与刚度,可为风电齿轮箱的设计改进提供参考。
The lightweight design of the wind turbine gearbox house is of great significance to reduce the cost of wind turbines,improve the power density of wind turbines and the mechanical properties of wind turbine structure.Affected by extreme wind conditions and climatic conditions,the housing has been subjected to the impact of irregular loads from the transmission system for a long time,which leads to the problems of incomplete load cases coverage,unreasonable model simplification and low material utilization rate in the optimization design process.Therefore,based on considering multiple extreme service load cases and reasonable equivalence of models,the lightweight design of the housing was carried out.Based on the premise of verifying the accuracy of the model through modal testing,with the minimum mass of the housing as the optimization goal,and with the maximum stress of the housing under different extreme load cases as the constraint condition,multi-condition optimization design was carried out on the main shell,transition plate and rear shell in the components of the housing,and a comparison of the performance of the housing before and after improvement was made.The results show that after optimization,the mass of the housing was reduced by 4.7%(549.8 kg),and under different load cases,both maximum displacement and stress were significantly reduced.The lightweight design has also improved the strength and stiffness of the housing,which provides a reference for the design improvement of wind turbine gearboxes.
作者
叶楠
张传棻
王荣
贺明荣
张雁辉
段书用
YE Nan;ZHANG Chuanfen;WANG Rong;HE Mingrong;ZHANG Yanhui;DUAN Shuyong(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300401,China;School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China;State Key Laboratory for Strength and Vibration of Mechanical Structures,Xi’an Jiaotong University,Xi’an 710049,China;Tianjin Teek Transmission Co.,Ltd.,Tianjin 301800,China)
出处
《现代制造工程》
CSCD
北大核心
2024年第9期152-159,共8页
Modern Manufacturing Engineering
基金
国家自然科学基金资助项目(52205259)
河北省自然科学基金创新群体资助项目(E2020202142)
复杂服役环境重大装备结构强度与寿命全国重点实验室开放课题资助项目(SV2021-KF-15)。
关键词
极端服役工况
多工况
轻量化
风电齿轮箱箱体
模态试验
extreme service load cases
multiple load cases
lightweight
wind turbine gearbox house
modal test
作者简介
叶楠,讲师,硕士研究生导师,主要研究方向为工业机器人及核心零/部件可靠性、结构动态力学性能;张传棻,硕士研究生,主要研究方向为齿轮动力学分析、齿轮箱服役性能分析;通信作者:王荣,副教授,硕士研究生导师,主要研究方向为机电装备可靠性分析与保质设计、材料损伤与断裂。E-mail:rongwang@hebut.edu.cn。
