Vibration reduction of the nonlinearly traveling string by a modified variable structure control with proportional and integral compensations

• Published in: International journal of mechanical sciences Vol. 40; no. 6; pp. 493 - 506
• Main Authors: Fung, Rong-Fong, Huang, Jeng-Sheng, Wang, Yun-Chen, Yang, Rong-Tai
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.06.1998; Elsevier
• Subjects: Exact sciences and technology; Fundamental areas of phenomenology (including applications); nonlinearly traveling string; Physics; Solid mechanics; Structural and continuum mechanics; variable structure control; vibration reduction; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Vibrations and mechanical waves; vibration reduction; variable structure control; nonlinearly traveling string; Variable structure systems; Axial speed; Active system; Sliding mode; Vibration control; Translation motion; Numerical method; Non linear effect; Equations of motion; Integral proportional regulator; Beam(mechanics)
• ISSN: 0020-7403; 1879-2162
• DOI: 10.1016/S0020-7403(97)00062-3

In recent years, the variable structure control (VSC) method is widely exploited for suppressing vibration. The reduction of vibration in an axially moving string can improve productive quality and enhance competitive ability. Our object of this paper is not only to supress vibration of the string, but also to achieve the command in a shorter time. The controllers, like VSC, fuzzy, neuro-network and so on, have not achieved all the requirements of transient and steady-state situations; nevertheless, combining the advantages of different controllers is inevitable today. In our research, it is both to propose more cost-saving controllers and to achieve not only suppressions of vibration string but decreasing time for transient and steady-state situations.