电枢力作用下的电磁发射导轨及壁板的变形与应力分析  

Deformation and stress analysis of rails and panels of rail guns under armatures' force

作　　者：白象忠[1] 何威[1] 赵建波[1] 司秀勇[1] 

机构地区：[1]燕山大学建筑工程与力学学院,河北秦皇岛066004

出　　处：《燕山大学学报》2013年第3期270-277,共8页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(50875230)

摘　　要：本文将电磁轨道发射装置的发射导轨及壁板简化为双层弹性地基梁。当电枢位于发射状态的某一位置时,在电枢接触力的作用下,建立了发射导轨及壁板的微分平衡方程。应用"影响函数"法,得到了双层梁位移和应力的解析解。通过算例,对发射导轨及壁板的变形和应力进行了分析,并将计算结果与ANSYS的分析结果进行了比较,相互佐证了解的可靠性。本文的研究结果可为电磁发射装置构件的强度、刚度设计提供依据。Rails and panels of rail guns are simplified as double beams with bi-layer elastic foundations.Based on the situation of rails and panels under armatures＇ force during rail guns＇ launch,differential balance equations are established.Analytical solutions of displacement and stress of double beams are obtained by influence function method.Analytical solutions are verified by the comparison of them with ANSYS results in a sample problem.The results have a reference to strength and stiffness design of rail gun components.

关 键 词：导轨 壁板 变形 应力 双层弹性地基梁 

分 类 号：TM153.3[电气工程—电工理论与新技术] O343.3[理学—固体力学]