On the relevant nonlinearities in digital force control: Continuous versus discrete sources

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration Pub Date : 2025-07-27 DOI:10.1016/j.jsv.2025.119344

Rudolf R. Toth, Gabor Stepan

引用次数: 0

Abstract

In this paper a digital force control model is studied with both discrete and continuous nonlinearities. The discrete nonlinearity is caused by actuator saturation, while the continuous nonlinearity is a consequence of the stiffness characteristics. The effect of these nonlinearities on the resulting Neimark–Sacker bifurcations is determined analytically. The bifurcation calculation with continuous nonlinearities is carried out by means of a novel approach and the results are used to asses the relevant nonlinearities in digitally controlled systems.

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关于数字力控制中的相关非线性：连续源与离散源

本文研究了一种具有离散非线性和连续非线性的数字力控制模型。离散非线性是由执行器饱和引起的，而连续非线性是由刚度特性引起的。这些非线性对所产生的neimmark - sacker分岔的影响是解析确定的。采用一种新颖的方法进行了连续非线性的分岔计算，并将计算结果用于评价数控系统中的相关非线性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sound and Vibration 工程技术-工程：机械

CiteScore

9.10

自引率

10.60%

发文量

551

审稿时长

69 days

期刊介绍： The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application. JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.