12 research outputs found
Dynamic characteristics of planar linear array deployable structure based on scissor-like element with differently located revolute clearance joints
Computational Dynamics of an Elasto-Plastic Structural Element With Rigid-Body Degrees-of-Freedom
Chain Drives Modelling Using Kinematic Constraints and Revolute Clearance Joints Formulations
A high-order full-discretization method using Hermite interpolation for periodic time-delayed differential equations
Nonlinear dynamic characteristics analysis of planar flexible rotating beams with clearance joint
A survey and comparison of several friction force models for dynamic analysis of multibody mechanical systems
This study is aimed at examining and comparing several friction force models dealing with different
friction phenomena in the context of multibody system dynamics. For this purpose, a comprehensive review of present literature in this field of investigation is first presented. In this process, the main aspects related to friction are discussed, with particular emphasis on the pure dry sliding friction, stick鈥搒lip effect, viscous friction and Stribeck effect. In a simple and general way, the friction force models can be classified into two main groups, namely the static friction approaches and the dynamic friction models. The former group mainly describes the steady-state behavior of friction force, while the latter allows capturing more properties by using extra state variables. In the present study, a total of 21 different friction force models are described and their fundamental physical and computational characteristics are discussed and compared in details. The application of those friction models in multibody system dynamic modeling and simulation is then investigated. Two multibody mechanical systems are utilized as demonstrative application examples with the purpose of illustrating the influence of the various frictional approaches on the dynamic response of the systems. From the results obtained, it can be stated that both the choice of the friction force model and friction parameters involved can significantly affect the simulated/ modeled dynamic response of mechanical systems with friction.The 铿乺st author expresses his gratitude to the Portuguese Foundation for Science and Technology through the PhD grant (PD/BD/114154/2016). This work has been supported by the Portuguese Foundation for Science and Technology with the reference project UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020鈥擯rograma Operacional Competitividade e Internacionaliza莽茫o (POCI) with the reference project POCI-01-0145-FEDER-006941.info:eu-repo/semantics/publishedVersio