scholarly journals Erratum: Nonlinear transient dynamic analysis by explicit finite element with iterative consistent mass matrix

2009 ◽  
Vol 25 (7) ◽  
pp. 851-851 ◽  
Author(s):  
Shen Rong Wu ◽  
Weifeng Qiu
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Mass Matrix ◽  
Transient Dynamic Analysis ◽  
Explicit Finite Element ◽  
Transient Dynamic ◽  
Nonlinear Transient ◽  
Consistent Mass Matrix

Transient Dynamic Analysis of Maglev Linear Feed Unit

2011 ◽  
Vol 317-319 ◽  
pp. 405-409
Author(s):  
An Dong Jiang ◽  
Jiang Jin ◽  
Su Yang Ma ◽  
Zheng Peng Xia ◽  
Ping Liao
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Magnetic Levitation ◽  
Element Model ◽  
Design Stage ◽  
Transient Dynamic Analysis ◽  
Element Analysis ◽  
Forecast Performance ◽  
Transient Dynamic ◽  
Feed Unit

Abstract. The magnetic levitation linear feed unit is a new type of machine features. In machining, the tool and workpiece interaction force will be delivered to the table and make the deformation, resulting in processing errors of machine tools, machining of precision and surface quality. In this paper we established three-dimensional finite element model of the table of feed unit, use the finite element analysis software ANSYS to analysis of the transient dynamic analysis of the pre-designed table and improve the structure of the table at the design stage and forecast performance of the table and provide a theoretical basis for structure optimization.

Automated Vehicle Dynamic Analysis With Flexible Components

1984 ◽  
Vol 106 (1) ◽  
pp. 126-132 ◽  
Author(s):  
S. S. Kim ◽  
A. A. Shabana ◽  
E. J. Haug
Keyword(s):  
Dynamic Analysis ◽  
Equations Of Motion ◽  
Coupled System ◽  
Ride Quality ◽  
Vertical Acceleration ◽  
Transient Dynamic Analysis ◽  
Transient Dynamic ◽  
Generalized Coordinates ◽  
Rigid Body Model ◽  
Nonlinear Transient

A method is presented for nonlinear, transient dynamic analysis of vehicle systems that are composed of interconnected rigid and flexible bodies. The finite element method is used to characterize deformation of each elastic body and a component mode technique is employed to reduce the number of elastic generalized coordinates. Equations of motion and constraints of the coupled system are formulated in terms of a minimal set of modal and reference generalized coordinates. A Lagrange multiplier technique is used to account for kinematic constraints between bodies and a generalized coordinate partitioning technique is employed to eliminate dependent coordinates. The method is applied to a planar truck model with a flexible chassis and nonlinear suspension components. Simulation results for transient dynamic response as the vehicle traverses a bump, including the effect of bump-stops, and random terrain show that flexibility of the chassis can be routinely accounted for and predicts significant effects on vibratory motion of the vehicle. Compared with a rigid body model, flexibility of the chassis increases peak acceleration of the chassis and induces high-frequency vertical acceleration in the range of human resonance, measured in this paper as driver absorbed power, which deteriorates ride quality of off-road vehicles.

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