Dynamics of spatial flexible multibody systems with clearance and lubricated spherical joints

Qiang Tian; Yunqing Zhang; Liping Chen; Paulo Flores

doi:10.1016/j.compstruc.2009.03.006

Dynamics of spatial flexible multibody systems with clearance and lubricated spherical joints

Qiang Tian, Yunqing Zhang^*, Liping Chen, Paulo Flores

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

227 Citations (Scopus)

Abstract

A computational methodology for analysis of spatial flexible multibody systems, considering the effects of the clearances and lubrication in the system spherical joints, is presented. The dry contact forces are evaluated through a Hertzian-based contact law, which includes a damping term representing the energy dissipation. The frictional forces are evaluated using a modified Coulomb's friction law. In the case of lubricated joints, the resulting lubricant forces are derived from the corresponding Reynolds' equation. An absolute nodal formulation is utilized in flexible body formulation. The generalized-α method is used to solve the resulting equations of motion. The effectiveness of the methodology is demonstrated by two numerical examples. Crown

Original language	English
Pages (from-to)	913-929
Number of pages	17
Journal	Computers and Structures
Volume	87
Issue number	13-14
DOIs	https://doi.org/10.1016/j.compstruc.2009.03.006
Publication status	Published - Jul 2009
Externally published	Yes

Keywords

Absolute nodal coordinate formulation
Clearance
Generalized-α method
Lubricated joints
Reynolds' equation
Spherical joints

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10.1016/j.compstruc.2009.03.006

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Tian, Q., Zhang, Y., Chen, L., & Flores, P. (2009). Dynamics of spatial flexible multibody systems with clearance and lubricated spherical joints. Computers and Structures, 87(13-14), 913-929. https://doi.org/10.1016/j.compstruc.2009.03.006

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abstract = "A computational methodology for analysis of spatial flexible multibody systems, considering the effects of the clearances and lubrication in the system spherical joints, is presented. The dry contact forces are evaluated through a Hertzian-based contact law, which includes a damping term representing the energy dissipation. The frictional forces are evaluated using a modified Coulomb's friction law. In the case of lubricated joints, the resulting lubricant forces are derived from the corresponding Reynolds' equation. An absolute nodal formulation is utilized in flexible body formulation. The generalized-α method is used to solve the resulting equations of motion. The effectiveness of the methodology is demonstrated by two numerical examples. Crown",

keywords = "Absolute nodal coordinate formulation, Clearance, Generalized-α method, Lubricated joints, Reynolds' equation, Spherical joints",

author = "Qiang Tian and Yunqing Zhang and Liping Chen and Paulo Flores",

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doi = "10.1016/j.compstruc.2009.03.006",

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AU - Tian, Qiang

AU - Zhang, Yunqing

AU - Chen, Liping

AU - Flores, Paulo

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Y1 - 2009/7

N2 - A computational methodology for analysis of spatial flexible multibody systems, considering the effects of the clearances and lubrication in the system spherical joints, is presented. The dry contact forces are evaluated through a Hertzian-based contact law, which includes a damping term representing the energy dissipation. The frictional forces are evaluated using a modified Coulomb's friction law. In the case of lubricated joints, the resulting lubricant forces are derived from the corresponding Reynolds' equation. An absolute nodal formulation is utilized in flexible body formulation. The generalized-α method is used to solve the resulting equations of motion. The effectiveness of the methodology is demonstrated by two numerical examples. Crown

AB - A computational methodology for analysis of spatial flexible multibody systems, considering the effects of the clearances and lubrication in the system spherical joints, is presented. The dry contact forces are evaluated through a Hertzian-based contact law, which includes a damping term representing the energy dissipation. The frictional forces are evaluated using a modified Coulomb's friction law. In the case of lubricated joints, the resulting lubricant forces are derived from the corresponding Reynolds' equation. An absolute nodal formulation is utilized in flexible body formulation. The generalized-α method is used to solve the resulting equations of motion. The effectiveness of the methodology is demonstrated by two numerical examples. Crown

KW - Absolute nodal coordinate formulation

KW - Clearance

KW - Generalized-α method

KW - Lubricated joints

KW - Reynolds' equation

KW - Spherical joints

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DO - 10.1016/j.compstruc.2009.03.006

M3 - Article

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SN - 0045-7949

VL - 87

SP - 913

EP - 929

JO - Computers and Structures

JF - Computers and Structures

IS - 13-14

ER -

Dynamics of spatial flexible multibody systems with clearance and lubricated spherical joints

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Keywords

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