Dynamic Analysis of Planar 3-RRR Flexible Parallel Robots with Dynamic Stiffening
Open Access
- 1 January 2014
- journal article
- research article
- Published by Hindawi Limited in Shock and Vibration
- Vol. 2014, 1-13
- https://doi.org/10.1155/2014/370145
Abstract
In consideration of the second-order coupling quantity of the axial displacement caused by the transverse displacement of flexible beam, the first-order approximation coupling model of planar 3-RRR flexible parallel robots is presented, in which the rigid body motion constraints, elastic deformation motion constraints, and dynamic constraints of the moving platform are considered. Based on the different speed of the moving platform, numerical simulation results using the conventional zero-order approximation coupling model and the proposed firstorder approximation coupling model show that the effect of “dynamic stiffening” term on dynamic characteristics of the system is insignificant and can be neglected, and the zero-order approximation coupling model is enough precisely for catching essentially dynamic characteristics of the system. Then, the commercial software ANSYS 13.0 is used to confirm the validity of the zero-order approximation coupling model.Keywords
Funding Information
- National Natural Science Foundation of China (91223201)
This publication has 18 references indexed in Scilit:
- Experimental Implementation on Vibration Mode Control of a Moving 3-PRR Flexible Parallel Manipulator with Multiple PZT TransducersJournal of Vibration and Control, 2010
- Dynamic analysis of flexible manipulators, a literature reviewMechanism and Machine Theory, 2006
- FEM dynamic model for active vibration control of flexible linkages and its application to a planar parallel manipulatorApplied Acoustics, 2005
- Control of flexible manipulators: A surveyRobotica, 2004
- Model study and active control of a rotating flexible cantilever beamInternational Journal of Mechanical Sciences, 2004
- Study of the Geometric Stiffening Effect: Comparison of Different FormulationsMultibody System Dynamics, 2004
- On Dynamic Stiffening of Flexible Bodies Having High Angular Velocity*Mechanics of Structures and Machines, 1996
- A dynamic model of a flexible stewart platformComputers & Structures, 1993
- Dynamics of a cantilever beam attached to a moving baseJournal of Guidance, Control, and Dynamics, 1987
- Kineto-elastodynamics — A review of the state of the art and trendsMechanism and Machine Theory, 1972