聚氨酯护舷有限元分析及性能测试  

Finite Element Analysis and Performance Test to Polyurethane Fender

作　　者：谢良喜[1] 曾文豪 刘婧蓉 江志刚[1] 向峰[1] 赵刚[1] XIE Liangxi;ZENG Wenhao;LIU Jingrong;JIANG Zhigang;XIANG Feng;ZHAO Gang(College of Machinery and Automation,National Demonstration Center for Experimental Mechanical Education,Key Laboratory of Metallurgical Equipment and Control Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学机械自动化学院机械国家级实验教学示范中心,冶金装备及其控制教育部重点实验室,武汉430081

出　　处：《实验室研究与探索》2021年第12期9-12,32,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(51375352);武汉科技大学研究生教育教学改革项目(Yjg202001,Yjg202003,Yjg202006)。

摘　　要：为了评估聚氨酯材料及护舷产品的力学性能,对其开展了有限元分析及性能测试。首先对聚氨酯材料进行单轴拉伸和单轴压缩性能测试实验,根据实验数据采用4种模型构建材料的本构模型。结果表明,二阶多项式模型(POLY_N2)拟合出的应力-应变曲线变化趋势与试验数据吻合较好,表明该本构模型可以较为精确地描述聚氨酯材料的力学性能。运用ABAQUS仿真软件针对型号规格为GD300H-1000L的聚氨酯护舷产品开展了有限元分析,获取其反力与吸能理论数据,对该护舷产品的实物样品开展了性能测试实验,将实验数据与仿真分析结果进行了对比,发现两者基本吻合。In order to evaluate the mechanical properties of polyurethane materials and fender products,finite element analysis and performance tests were carried out.Firstly,the uniaxial tensile and uniaxial compression performance tests were conducted on the polyurethane material,and four models were used to construct the intrinsic structure model of the material according to the experimental data.The results show that the trend of stress-strain curve fitted by the second-order polynomial model(POLY-N2)is in good agreement with the experimental data,which indicates that the intrinsic model can describe the mechanical properties of polyurethane material more accurately.Using ABAQUS simulation software,finite element analysis was carried out for the polyurethane fender GD300H-1000L to obtain theoretical data of reaction force and energy absorption,and performance test experiments were conducted on the physical samples of the fender.

关 键 词：聚氨酯材料 护舷 非线性有限元分析 

分 类 号：TH16[机械工程—机械制造及自动化]