A Dynamic Analysis for the Loose Lashing Wire Grouped Blade

The loose lashing wire grouped blade, all blades of which are linked by a loose lashing wire, is a kind of damped blade. The linear analysis method cannot be used for the dynamic analysis of loose lashing wire grouped blade because of the contact between loose lashing wire and blades. A non-linear dynamic analysis method is advanced and an application of the method to a kind of loose lashing wire grouped blade is shown in this paper. First, the nonlinear transient dynamic analysis and maximum entropy spectrum analysis methods for loose lashing wire grouped blade are studied. Then, an algorithm to calculate the dynamical stress of loose lashing wire grouped blade with transient dynamical analysis method is proposed. The proposed method provides a useful numerical calculating method for the calculation of dynamical frequency and dynamical stress of loose lashing wire grouped blades.

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

Communications in Numerical Methods in Engineering ◽

10.1002/cnm.1261 ◽

2009 ◽

Vol 25 (7) ◽

pp. 851-851 ◽

Cited By ~ 1

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

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Using the Explicit Dynamic Method to Simulate Pile Dynamical Driving Process

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.163-167.366 ◽

2010 ◽

Vol 163-167 ◽

pp. 366-371

Author(s):

Jian Bing Lv ◽

He Lin Fu ◽

Hua Zhi Li ◽

Zhe Liu

Keyword(s):

Method Development ◽

Elastic Solid ◽

Computational Method ◽

Dynamical Analysis ◽

Pile Driving ◽

Past Study ◽

Analysis Method ◽

The Past ◽

Explicit Dynamic ◽

Dynamical Stress

The dynamic pile driving process is so complex that till now the analysis on the process had been focusing on the filed test or laboratory test. However, the past study about the dynamic process is a time consuming one; with the computational method development, the numerical simulation on this process is possible. In this paper, explicit dynamical analysis method is adopted, the pile is simulated using the elastic solid element, two computational cases are considered and finally the pile driving process dynamical stress is studied.

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Automated Vehicle Dynamic Analysis With Flexible Components

Journal of Mechanisms Transmissions and Automation in Design ◽

10.1115/1.3258550 ◽

1984 ◽

Vol 106 (1) ◽

pp. 126-132 ◽

Cited By ~ 5

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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