摘要
为能在瑞玛高频疲劳试验机上实现做"T"型焊接试样拉伸试验的目的,创新设计了可根据试样厚度调节夹具装夹板长度的拉拉试验夹具。首先,根据瑞玛试验机的空间布置及试样尺寸范围确定夹具中夹头、销、夹具底座及装夹板的整体尺寸,其次,运用经典力学理论对夹具的各个具体尺寸进行设计,最后,运用Workbench软件的静态强度有限元分析对夹具进行校核设计,并将仿真计算结果与经典力学理论计算结果进行误差比较分析,验证了设计夹具的可行性,最终得到了一种用于"T"型焊接试样的装夹板长度可调节的新型夹具。
In order to achieve the purpose of"T"type welding specimen tensile test on the RUMUL high frequency fatigue testing machine,we innovatively designed a pull test fixture that adjusts the length of the clamp plate according to the thickness of the specimen.Firstly,according to the spatial arrangement of the RUMUL test machine and the size range of the sample,the overall dimensions of the chuck,pin,clamp base and clamping plate in the fixture are determined.Secondly,the specific dimensions of the fixture are designed by classical mechanics theory;Finally,the static strength finite element analysis of the workbench software is used to check the fixture design,and the simulation results are compared with the classical mechanical theory calculation results to verify the feasibility of the design fixture.A new type of clamp with adjustable length of the clamping plate for the"T"welding specimen was finally obtained.
作者
邵长敬
卢曦
Shao Changjing;Lu Xi(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《农业装备与车辆工程》
2020年第3期28-31,共4页
Agricultural Equipment & Vehicle Engineering
基金
上海市自然科学基金“基于强度场的结构设计-制造定量匹配理论研究”(19ZR1435500)
上海汽车工业科技发展基金会“新能源汽车无冲击高效能电磁离合器研发”(1821)。
关键词
夹具设计
瑞玛试验机
有限元仿真
应力
fixture design
RUMUL test machine
finite element simulation
stress
