摘要
阐述了在非定常电磁场和机械场的作用下，洛仑兹力对非线性载流薄板薄壳应力应变状态的影响。导出了在电磁场中洛仑兹力的具体表达式。通过对环形薄板在电磁场和机械场联合作用下应力应变状态的计算，指出变化洛仑兹力的作用可以得到最佳的应力应变状态。本文可供在强电磁场中工作的载流元件、防护元件及设备在设计及实际应用时作参考。
The effects of Lorentz's force provided by unstable electromagnetic field with a mechanicai field on the stress-strain state of a nonlinear current-carrying thin plate or shell are expounded in this paper.The expressions of Lorentz's force in an electromagnetic field are derived. The stress-strain state for a ring-shape plate acted by an electromagnetic field with a mechanical field is analyzed. The optimum stress-strain state can be determined by changing the action of Lorentz's force. The present work offers design sidelines to current-carrying elements, protective components and equipment working in a strong electromagnetic field.
出处
《工程力学》
EI
CSCD
北大核心
2000年第1期88-93,共6页
Engineering Mechanics
基金
国家自然科学基金!19772046
