Hornung Peter
Department of Mathematical Sciences, University of Bath, Bath BA2 7AY, United Kingdom.
Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Jun;81(6 Pt 2):066603. doi: 10.1103/PhysRevE.81.066603. Epub 2010 Jun 28.
We derive the Euler-Lagrange equations for a large class of variational problems on curves. Our result generalizes a recent result obtained in the literature. Moreover, it is simple and self-contained. It directly yields Euler-Lagrange equations in the form of equilibrium equations for the internal force and moment.
我们推导了一大类曲线变分问题的欧拉 - 拉格朗日方程。我们的结果推广了文献中最近得到的一个结果。此外,它简单且自成体系。它直接给出了以内力和力矩平衡方程形式的欧拉 - 拉格朗日方程。