可移动载荷弯曲梁实验设计与理论研究  

Experimental design and theoretical analysis of movable load bending beam

作　　者：孙传松 张东焕[1] 周继磊[1] SUN Chuansong;ZHANG Donghuan;ZHOU Jilei(School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo 255049,China)

机构地区：[1]山东理工大学交通与车辆工程学院

出　　处：《山东理工大学学报（自然科学版）》2020年第1期74-78,共5页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：为适应工程教育认证体系建设和材料力学创新实验改革,将现有受固定载荷作用的纯弯曲梁实验设备拓展为两处受移动载荷作用的横向力四点弯曲梁实验设备,则可在一台设备上同时进行纯弯曲和横力弯曲实验,且可任意改变载荷加载位置。推导出了任意载荷位置下弯曲梁的弹性力学解析解,并通过ABAQUS数值模拟和实验对理论解进行了验证,实验结果、数值模拟结果与理论解析解结果吻合良好。该实验设计丰富了传统纯弯曲梁的实验形式,在加深学生对理论知识理解的同时,可进一步提高学生的自主设计和改造实验的能力。In order to adapt to the engineering education certification system construction and material mechanics innovation experiment reform,the paper uses the existing pure bending beam experimental equipment with fixed load to expand into two lateral bending four-point bending beam experimental equipment subjected to moving loads.As a result,pure bending and lateral bending experiments can be performed simultaneously on a single device,and students can change the load loading position autonomously.The elastic analytic solution of the curved beam under arbitrary load position is derived,and the theoretical solution is verified by ABAQUS numerical simulation and experiment.The experimental results and numerical simulation results are in good agreement with the theoretical analytical results.The experimental design enriches the experimental form of traditional pure curved beam.While deepening students'understanding of theoretical knowledge,it can further improve students'ability of independent design and transformation experiments.

关 键 词：材料力学 移动载荷 实验设计 理论分析 

分 类 号：TU502[建筑科学—建筑技术科学]