Developments of multibody system dynamics: computer simulations and experiments

Yoo, Wan-Suk; Kim, Kee-Nam; Kim, Hyun Woo; Sohn, Jae Hak

doi:10.1007/s11044-007-9062-6

Cited by 28 publications

(19 citation statements)

References 35 publications

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“…Some comments about difficulties regarding using the Newmark method for time integration and the proposition of energy conserving algorithms are also described in literature on Bauchau (1998), Cardona, Géradin and Doan (1991), Romero and Armero (2002) and Leyendecker, Betsch and Steinmann (2006). Other interesting works related to multibody dynamic applications can be mentioned such as Greco and Coda (2006), Yoo et al (2007), Hong and Ren (2011) and Moon et al (2014).…”

Section: Introductionmentioning

confidence: 99%

Development of Sliding Connections for Structural Analysis by a Total Lagrangian FEM Formulation

Siqueira

Coda

2016

Lat. Am. j. solids struct.

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In this study a total lagrangian 2D finite element formulation is used to model plane frames developing large displacements and rotations considering sliding connections. This kind of connections is usually called prismatic and cylindrical joints. In order to be self-containing, the steps of the development of a frame finite element of any approximation order that considers the influence of shear strain by means of a generalized Reissner kinematics is presented. The adopted degrees of freedom are positions and rotations. Using positions as degrees of freedom simplifies the total lagrangian description and enables a comprehensive presentation of the proposed connections. Revolute connections are considered by direct degrees of freedom matching. Prismatic connections are modelled by the Lagrange multiplier technique that constrains positions and rotation of a sliding node to the varying position and rotation of a path element. Cylindrical joints are introduced in similar way by Lagrange multipliers releasing the sliding node rotation. The principle of stationary potential energy is used to write the non-linear equilibrium equation including the Lagrange multiplier influence. To solve the non-linear equation a Taylor expansion is carried out and the Newton-Raphson procedure is employed. The frame element is considered elastic, following the Saint-VenantKirchhoff constitutive model. Selected examples are used to validate the formulation and to show its possibilities of application.

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Section: Introductionmentioning

confidence: 99%

Development of Sliding Connections for Structural Analysis by a Total Lagrangian FEM Formulation

Siqueira

Coda

2016

Lat. Am. j. solids struct.

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“…Multibody system dynamics methods (MSDMs) that have been developed since 50 years ago [1][2][3][4][5][6][7] provide effective methods for dynamics analysis of modern mechanical systems. Consequently, the developments of ships, aircraft, aerospace, traffics, and general machinery industry have been promoted greatly.…”

Section: Introductionmentioning

confidence: 99%

Study on automatic deduction method of overall transfer equation for tree systems as well as closed-loop-and-branch-mixed systems

Sun

Wang

Rui

et al. 2018

Advances in Mechanical Engineering

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The transfer matrix method for multibody systems has been developed for 20 years and improved constantly. The new version of transfer matrix method for multibody system and the automatic deduction method of overall transfer equation presented in recent years make it more convenient of the method for engineering application. In this article, by first defining branch subsystem, any complex multibody system may be regarded as the assembling of branch subsystems and simple chain subsystems. If there are closed loops in the system, the loops should be ''cut off,'' thus a pair of ''new boundaries'' are generated at each ''cutting-off'' point. The relationship between the state vectors of the pair of ''new boundaries'' may be described by a supplement equation. Based on above work, the automatic deduction method of overall transfer equation for tree systems as well as closed-loop-and-branch-mixed systems is formed. The results of numerical examples obtained by the automatic deduction method and ADAMS software for tree system dynamics as well as mixed system dynamics have good agreements, which validate the features of proposed method such as high computational speed, more effective for complex systems, no need of the system global dynamics equation, highly programmable, as well as convenient popularization and application in engineering. KeywordsNew version of transfer matrix method for multibody systems, branch subsystem, closed-loop subsystem, tree system, mixed system, automatic deduction method of overall transfer equation Date

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“…Since the multi-body dynamics has been developed, many researches in multi-body dynamics modeling, design, control, solution strategy and experiment of different mechanical system have been done [3][4][5]. The multi-body dynamics analysis of crankshaft assembly has been developed from rigid multi-body dynamics to flexible multi-body dynamics in order to improve the accuracy [6].…”

Section: Introductionmentioning

confidence: 99%

Multi-Body Dynamics Simulation Analysis of Crankshaft Assembly in V-Type 12-Cylinder Large Diesel Based on Adams

Ni¹,

Hua²,

Ma³

et al. 2017

Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)

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Abstract. Crankshaft assembly, as one of the most important parts of the engine, always suffers many kinds of cyclic loading during service. Due to the higher requirements for dynamic property of mechanical system, it is necessary to work on multi-body dynamics simulation of crankshaft assembly quick and accurately. The multi-body dynamics simulation analysis was carried out to the crankshaft assembly in V-type 12-cylinder large diesel by dynamics analysis software ADAMS in this work. The kinematic characteristics of piston and load characteristic of connecting rod are obtained via simulations. The comparison of loads on connecting rod between simulation result and analytical calculation result verified the accuracy of multi-body dynamics simulation of crankshaft assembly based on ADAMS. The simulation results can provided basis for finite element analysis of crankshaft and provided guidance for improving the dynamic characteristic of crankshaft assembly.

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Developments of multibody system dynamics: computer simulations and experiments

Cited by 28 publications

References 35 publications

Development of Sliding Connections for Structural Analysis by a Total Lagrangian FEM Formulation

Development of Sliding Connections for Structural Analysis by a Total Lagrangian FEM Formulation

Study on automatic deduction method of overall transfer equation for tree systems as well as closed-loop-and-branch-mixed systems

Multi-Body Dynamics Simulation Analysis of Crankshaft Assembly in V-Type 12-Cylinder Large Diesel Based on Adams

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