面向高速织机的吸能板壳结构拓扑优化  

Topology optimization of energy-absorbing plate and shell structure for high-speed weaving machines

作　　者：王蕊 肖人彬[3] 吴紫俊 WANG Rui;XIAO Renbin;WU Zijun(Hubei Digital Textile Equipment Key Laboratory,Wuhan Textile University,Wuhan 430020,China;Industrial Detonator Intelligent Assembly Hubei Engineering Research Center,Wuhan Textile University,Wuhan 430020,China;School of Artificial Intelligence and Automation,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]武汉纺织大学湖北省数字化纺织装备重点实验室,武汉430020 [2]武汉纺织大学工业雷管智能装配湖北省工程研究中心,武汉430020 [3]华中科技大学人工智能与自动化学院,武汉430074

出　　处：《现代纺织技术》2023年第5期165-173,共9页Advanced Textile Technology

基　　金：国家自然科学基金项目(52275266);湖北省教育厅科学技术研究项目(D20221701)。

摘　　要：纺织装备壳体吸能构件的智能优化设计,有利于纺织产业的健康绿色发展。提出了吸能阻尼板壳结构拓扑优化方法,构建了约束阻尼板有限元模型,并详细介绍了本构关系复数模型与弹性材料动力学模型,计算了基于模态应变能法第r阶模态阻尼比,推导了结构内各单元的灵敏度计算式。在研究粘弹性阻尼层动力学特性的基础上,以结构模态损耗因子最大化为优化目标,以阻尼材料用量为约束条件,采用优化准则法更新设计变量,设计了高速织机的吸能板壳结构的优化方法。结合综框实例对所提方法的有效性进行了验证,实现阻尼板壳结构的减振控制与轻量化,为高速织机的吸能板壳结构设计提供理论依据和方法途径。Since high-speed weaving machines and other textile equipment usually have heald frames,shells and other ultra-large flat and shell components,its large radiation area and small damping characteristics make it more likely to generate vibration noise under external excitation,and it takes a longer time to reduce vibration,so the research and control of high-speed weaving machine vibration have become an urgent technical problem in the textile industry.At present,the combination of topology optimization technology to promote the intelligent and optimal design of energy-absorbing components of the textile equipment shell is extremely beneficial to the healthy and green development of the textile industry.To achieve the performance requirements of structural load-bearing and energy-absorbing and to effectively achieve structural lightweight,we proposed the design method of energy absorption and vibration damping of constrained damped plate and shell structure for the vibration characteristics of high-speed weaving machine plate and shell structure.Since the energy absorption and damping performance of the plate and shell structure are closely related to the distribution of damping materials,the combination of the topology optimization technology can improve the inherent characteristics of structures to achieve the effect of damping and energy absorption,and achieve the efficient and high-precision lightweight structural design.In practical engineering applications,viscoelastic damping materials are usually completely coated and bonded to the surface of the structure,which can convert the vibration energy into heat consumption as the strain of the damping material lags behind the stress under the action of vibration.This type of free damping method that completely covers the damping material does not give full play to the shear energy dissipation ability of the material.In order to further improve the energy absorption capacity of the damping layer,we added a constraint layer on the surface of the damping material to

关 键 词：高速织机 吸能减振 阻尼结构 拓扑优化 材料插值模型 

分 类 号：TH122[机械工程—机械设计及理论]