scholarly journals A modified HHT method for the numerical simulation of rigid body rotations with Euler parameters

2019 ◽  
Vol 46 (2) ◽  
pp. 181-202 ◽  
Author(s):  
Karim Sherif ◽  
Karin Nachbagauer ◽  
Wolfgang Steiner ◽  
Thomas Lauß
Author(s):  
N. Duke Perreira

Abstract The effort/motion approach has been developed for use in designing, simulating and controlling multibody systems. Some aspects of each of these topics are discussed here. In the effort/motion formulation two sets of equations based on the orthogonal projections of a dimensional gauge invariant form of Newton’s Second Law occur. The projections are onto the normal and tangent directions of a dimensional gauge invariant constraint surface. The paper shows how these equations are obtained for a particular linkage with redundant effort and motion actuation. Two alternative Runga-Kutta based approaches for numerical simulation of the effort/motion equations are developed and applied in simulating the motion and determining the effort generated in the example linkage under various conditions. Oscillation about equilibrium positions, solutions with constant motion and with constant effort are given as examples of the approach.


2004 ◽  
Vol 126 (1) ◽  
pp. 124-130 ◽  
Author(s):  
Ravishankar Shivarama ◽  
Eric P. Fahrenthold

A combination of Euler parameter kinematics and Hamiltonian mechanics provides a rigid body dynamics model well suited for use in strongly nonlinear problems involving arbitrarily large rotations. The model is unconstrained, free of singularities, includes a general potential energy function and a minimum set of momentum variables, and takes an explicit state space form convenient for numerical implementation. The general formulation may be specialized to address particular applications, as illustrated in several three dimensional example problems.


2015 ◽  
Vol 292 ◽  
pp. 239-252 ◽  
Author(s):  
Samir Shrestha ◽  
Sudarshan Tiwari ◽  
Axel Klar ◽  
Steffen Hardt

Author(s):  
Cornelius Ogab ◽  
Babatunde Idowu ◽  
Abiola Ogungbe ◽  
Eugene Onori ◽  
Olufunmilayo Ometan ◽  
...  

We present Euler’s Equation of Rigid Body, its control and synchronization using active control and recursive backstepping methods. Based on Lyapunov stability theory, control laws are derived to synchronize the chaotic system and also to control to a steady state as well as track to a desired function via recursive backstepping methods. Numerical simulation are shown to verify the results.


2021 ◽  
Vol 241 ◽  
pp. 109997
Author(s):  
Pierre-Yves Wuillaume ◽  
Aurélien Babarit ◽  
François Rongère ◽  
Mattias Lynch ◽  
Pierre Ferrant

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