线性平移弹簧网络的均衡点
Equilibria for Networks of Linear Translational Springs
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中文总结 AI 辅助
该研究运用非线性代数工具,采用同伦相关技术求解2、3维下最多5节点的刚性线性平移弹簧网络的均衡点,给出平面弹簧网络解数界,对比了相关方法与牛顿法的计算效率。
中文摘要 AI 辅助
我们运用非线性代数工具研究小型线性平移弹簧网络的均衡点。具体而言,我们采用同伦连续、单值性以及参数同伦(又称“作弊者同伦”)技术,求解2维和3维下最多5个节点的所有刚性线性平移弹簧网络。我们提出一种由系统物理结构自然衍生的参数同伦实现方法,给出一般平面弹簧网络最大解数的精确总次数界,探讨多面体同伦方法带来的进一步效率提升,并将这些技术的计算效率与牛顿法基线进行对比。
英文摘要
We use tools from nonlinear algebra to study the equilibria of small linear translational spring networks. Specifically we use the techniques of homotopy continuation, monodromy, and parameter homotopy (a.k.a. cheater homotopy) to solve all rigid linear translational spring networks up to $5$ nodes in both $2$ and $3$ dimensions. We describe a method of implementing parameter homotopy that arises naturally from the physical structure of the system. We give precise total degree bounds on the maximum number of solutions for general planar spring networks. We discuss further efficiency gains obtained from polyhedral homotopy methods. We compare the computation efficiency of these techniques against a baseline of Newton's method.
发表机构
- Auburn University(奥本大学)
- New York University(纽约大学)
- Air Force Research Laboratory(空军研究实验室)
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