多体动力学半递归ODE公式灵敏度分析的解析方法

IF 4.4 2区工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Computers & Structures Pub Date : 2025-01-10 DOI:10.1016/j.compstruc.2024.107642

Álvaro López Varela, Daniel Dopico Dopico, Alberto Luaces Fernández

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引用次数: 0

摘要

灵敏度分析在许多应用中都是极为强大的工具，例如在使用基于梯度的方法优化多体系统动力学时。灵敏度计算是一项繁重的计算工作，而且根据所选的微分方法和动态方程组的不同，灵敏度计算的效率可能非常低。尽管半递归动态方法的动态性能通常是最高效的，但由于其复杂性，很少从灵敏度分析的角度对其进行分析研究。

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An analytical approach to the sensitivity analysis of semi-recursive ODE formulations for multibody dynamics

Sensitivity analysis is an extremely powerful tool in many applications such as in the optimization of the dynamics of multibody systems with gradient-based methods. Sensitivity calculations are computationally burdensome and, depending on the method chosen for differentiation and the set of dynamic equations, they could result highly inefficient. Semi-recursive dynamic methods are seldom studied analytically in terms of sensitivity analysis due to their complexity, even though their dynamic performance is usually among the most efficient.

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来源期刊

Computers & Structures 工程技术-工程：土木

CiteScore

8.80

自引率

6.40%

发文量

122

审稿时长

33 days

期刊介绍： Computers & Structures publishes advances in the development and use of computational methods for the solution of problems in engineering and the sciences. The range of appropriate contributions is wide, and includes papers on establishing appropriate mathematical models and their numerical solution in all areas of mechanics. The journal also includes articles that present a substantial review of a field in the topics of the journal.