Computer methods in flexible multibody dynamics

Huston, Ronald L.

doi:10.1002/nme.1620320809

Cited by 40 publications

(7 citation statements)

References 39 publications

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“…The main advantage of this method is that it is based on rigid body modeling techniques, making it easy to implement. The method was originally developed by Huston (1981) and further studied in Huston (1991), Huston and Wang (1993), Connelly and Huston (1994a) and Connelly and Huston (1994b). Hansen et al (2001) used the method for modeling of a mobile crane and achieved encouraging results in terms of conformity between measurements and simulations.…”

Section: Mechanical System Modelmentioning

confidence: 99%

Analysis of Offshore Knuckle Boom Crane - Part One: Modeling and Parameter Identification

Bak

Hansen

2013

MIC

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This paper presents an extensive model of a knuckle boom crane used for pipe handling on offshore drilling rigs. The mechanical system is modeled as a multi-body system and includes the structural flexibility and damping. The motion control system model includes the main components of the crane's electro-hydraulic actuation system. For this a novel black-box model for counterbalance valves is presented, which uses two different pressure ratios to compute the flow through the valve. Experimental data and parameter identification, based on both numerical optimization and manual tuning, are used to verify the crane model. The demonstrated modeling and parameter identification techniques target the system engineer and takes into account the limited access to component data normally encountered by engineers working with design of hydraulic systems.

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Section: Mechanical System Modelmentioning

confidence: 99%

Analysis of Offshore Knuckle Boom Crane - Part One: Modeling and Parameter Identification

Bak

Hansen

2013

MIC

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“…Lumped mass formulation is another method that can be used to describe mechanical flexibility (Hughes, 1979;Hughes & Winget, 1980;Huston, 1981;1991;Kamman & Huston, 2001;Raman-Nair & Baddour, 2003). In this formulation, a flexible body is replaced by a set of point masses connected via springs.…”

Section: Flexible Multibody Dynamicsmentioning

confidence: 99%

Estimating Lower Limb Skeletal Loading

Rantalainen¹,

Kłodowski²

2011

Theoretical Biomechanics

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“…One of the most difficult problems in modern mechanics is the study of the nonlinear dynamics of large flexible systems–particularly, flexible system undergoing rapid gross motion (e.g., for example, rapid rotation) . To meet the requirements of high‐speed precise instruments, establishing an effective accurate method for multi‐flexible‐body system including nonlinear large deformation has been considered as an important task.…”

Section: Introductionmentioning

confidence: 99%

An o(n) complexity recursive algorithm for multi‐flexible‐body dynamics based on absolute nodal coordinate formulation

2016

Numerical Meth Engineering

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Summary A new algorithm called recursive absolute nodal coordinate formulation algorithm (REC‐ANCF) is presented for dynamic analysis of multi‐flexible‐body system including nonlinear large deformation. This method utilizes the absolute nodal coordinate formulation (ANCF) to describe flexible bodies, and establishes a kinematic and dynamic recursive relationship for the whole system based on the articulated‐body algorithm (ABA). In the ordinary differential equations (ODEs) obtained by the REC‐ANCF, a simple form of the system generalized Jacobian matrix and generalized mass matrix is obtained. Thus, a recursive forward dynamic solution is proposed to solve the ODEs one element by one element through an appropriate matrix manipulation. Utilizing the parent array to describe the topological structure, the REC‐ANCF is suitable for generalized tree multibody systems. Besides, the cutting joint method is used in simple closed‐loop systems to make sure the O(n) algorithm complexity of the REC‐ANCF. Compared with common ANCF algorithms, the REC‐ANCF has several advantages: the optimal algorithm complexity (O(n)) under limited processors, simple derivational process, no location or speed constraint violation problem, higher algorithm accuracy. The validity and efficiency of this method are verified by several numerical tests. Copyright © 2016 John Wiley & Sons, Ltd.

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Computer methods in flexible multibody dynamics

Cited by 40 publications

References 39 publications

Analysis of Offshore Knuckle Boom Crane - Part One: Modeling and Parameter Identification

Analysis of Offshore Knuckle Boom Crane - Part One: Modeling and Parameter Identification

Estimating Lower Limb Skeletal Loading

An o(n) complexity recursive algorithm for multi‐flexible‐body dynamics based on absolute nodal coordinate formulation

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