Recursive formulations for multibody systems with frictional joints based on the interaction between bodies

Zai-kang, QI; Xu, Yongsheng; Li, Xiaoming; Yao, Shengji

doi:10.1007/s11044-010-9213-z

Cited by 39 publications

(22 citation statements)

References 37 publications

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“…Recent studies have analyzed how the contact forces within the spherical joints that form space structures affect their stability and precision [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Inference of power loss in spherical joints of the 6RSS parallel mechanism

Milica¹,

Andrei²

2017

MATEC Web Conf.

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Abstract. This paper presents an analysis of the power losses due to the friction between the components of the spherical joints, belonging to a 6RSS parallel mechanism. The determination of power losses in spherical joints has been done with an application where the characteristic point follows a closed space curve. The trajectory of the point on the convex semicuple in contact with the concave semicuple it has been determined by using facilities of the CATIA software.

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“…Recent studies have analyzed how the contact forces within the spherical joints that form space structures affect their stability and precision [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Inference of power loss in spherical joints of the 6RSS parallel mechanism

Milica¹,

Andrei²

2017

MATEC Web Conf.

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“…The emergence of the contact, collision, friction, and impact in clearance joints will cause severe vibration and nonlinear dynamic responses of the deployable space structures. 7,8 The clearance joints in multibody system cause significant effects on the deployment kinematics performance and dynamic performance. Flores 9 proposed a computational methodology to quantify the influence of the clearance size, friction coefficient, and number of clearance joints on the dynamic response of planar rigid multibody systems, which provided references for the dynamic analysis of multibody mechanical systems with multiple clearance joints.…”

Section: Introductionmentioning

confidence: 99%

Dynamic responses of space solar arrays considering joint clearance and structural flexibility

Wang

Huang

2016

Advances in Mechanical Engineering

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This article numerically investigates the effects of revolute joint clearance and structural flexibility on the overall dynamic characteristics of a deployable solar array system. Considering torque spring, close cable loop configuration, and lock mechanism, a typical mechanism composed of a main body with a yoke and two panels is used as a demonstration case to study the effects of clearance and flexibility on the dynamic response of the deployable solar array system in the deployment and lock process. The normal contact force model and tangential friction model in clearance joint are established using Lankarani Nikravesh model and modified Coulomb friction model, respectively. The numerical simulation results reveal that the coupling of clearance and flexibility makes different effects on the dynamic characteristics of the deployable space solar arrays for different operation stages. Besides, the clearance and flexibility of a mechanical system play crucial roles in predicting accurately the dynamic response of the system, which is the foundation of mechanism design, precision analysis, and control system design.

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“…The large deployable structures usually contain a large number of joints to achieve the smooth rotation of the structure parts. Joint clearance often generates nonlinear characteristics, such as impact or contact, which affects the stability and the accuracy of deployable structures (Qi et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Characteristic of Spherical Joints with Clearance

Zhang¹,

Guo²,

Liu³

et al. 2015

J.Aerosp. Technol. Manag.

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Joints in deployable structures can degrade the stiffness and the stability of spacecraft. In this study, the nonlinear stiffness of spherical joints is investigated. The traditional contact model of spherical joints based on non-conforming contact assumption is presented. A new contact model for spherical joints based on the Winkler model and geometric constraints is established to calculate the stiffness of spherical joints with small clearances. The finite element model (FEM) of spherical joints is built to evaluate the accuracy of the theoretical model. The effects of the clearance and the contact force of spherical joints on the deformation of joints are investigated. When compared with FEM results, the error of the new spherical model is smaller than that of the traditional contact model when the clearance of spherical joint is not excessively large. The new contact model for spherical joint is more accurate than the traditional contact model when the clearance of spherical joint is large.

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Recursive formulations for multibody systems with frictional joints based on the interaction between bodies

Cited by 39 publications

References 37 publications

Inference of power loss in spherical joints of the 6RSS parallel mechanism

Inference of power loss in spherical joints of the 6RSS parallel mechanism

Dynamic responses of space solar arrays considering joint clearance and structural flexibility

Nonlinear Characteristic of Spherical Joints with Clearance

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