A tight coupling scheme for smooth/non-smooth multibody co-simulation of a particle damper. (July 2021)

• Record Type: Journal Article
• Authors: Zhang, Runsen; Zhang, Huimin; Zanoni, Andrea; Wang, Qi; Masarati, Pierangelo
• Is Part Of: Mechanism and machine theory. Volume 161(2021)
• Publication Date: 2021-07
• Subjects: Co-simulation methods -- Particle dampers -- Stability analysis -- Non-smooth dynamics; Machine theory -- Periodicals; Machinery -- Periodicals; Machines -- Périodiques; Génie mécanique -- Périodiques; Machine theory; Machinery; Periodicals; 621.81
• DOI: 10.1016/j.mechmachtheory.2020.104181
• Languages: English
• ISSNs: 0094-114X

Abstract

Highlights: Coupling scheme that embeds a non-smooth solver into iterations of a MBD solver. Improvement of the co-simulation stability. Effectiveness of the proposed method on coupled systems with a particle damper. Suppression effect of the particle damper under large full three-dimensional motion. Abstract: To simulate coupled problems, composed of smooth and non-smooth particle subsystems, a tight, i.e. iterative coupling scheme is implemented. In the proposed setup, the non-smooth solver iterations are enclosed in each iteration of the smooth solver at every time step. The stability properties of the coupling scheme are tested using Dahlquist's test equations for co-simulation methods, highlighting the higher degree of stability of the tight coupling scheme, compared to the loose, non-iterative one. Results also denote that the properties of the solvers used to analyse the subsystems play an important role in the stability of co-simulation. The performance of the proposed scheme is further assessed by two illustrative examples: a particle damper subjected to prescribed motion, and a cantilever beam, modelled using finite elements, with a particle damper mounted at the free end. The proposed numerical solutions agree well with results from reduced order models and experiments, which demonstrates that the proposed scheme can effectively handle coupled problems of multibody systems and particle dampers.