摘要
通过对变分法原理的推导分析,说明在计算力、力矩、电感、电容等与贮能有关的量时,用贮能函数导出比直接用势函数导出更为精确,并结合实验验证理论分析。在实验中进一步发现麦克斯韦张量法更加依赖于网格划分的程度,而利用能量法的计算时间明显比利用麦克斯韦张量法的计算时间长。
By analyzing the deduction of the calculus of variations, it proved that calculating by stored-energy function was more accurate than by potential function in terms of some numerical values related to stored-energy such as force, torque,inductance, capacitance and so on. This paper verified the above theory with a series of experiments. The results show that the precision of Maxwell Tensor methods depends more heaving on mesh density, and the computing time of energy methods is obviously longer than that of Maxwell Tensor methods in this calculation.
出处
《微特电机》
北大核心
2009年第8期21-22,56,共3页
Small & Special Electrical Machines
关键词
有限元
贮能函数
势函数
电磁场
麦克斯韦张量法
能量法
FEM
stored-energy function
potential function
electromagnetism
Maxwell Tensor methods
energy methods
