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Modelling and Simulation of General Path Centrifugal Pendulum Vibration Absorbers
Technical Paper
2015-24-2387
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The aim of this paper is the study of the Centrifugal Pendulum Vibration Absorber (CPVA) dynamic behavior, with the background of improved vibration isolation and damping quality through a wide range of operating speeds.
The CPVAs are passive devices, which are used in rotating machinery to reduce the torsional vibration without decreasing performance. After a first use of these damping systems in the field of aeronautics, nowadays CPVAs are employed also in railway and automotive applications.
In principle, the CPVA is a mass, mounted on a rotor, which moves along a defined path relative to the rotor itself, driven by centrifugal effects and by the rotor's torsional vibrations.
The advantage that such absorbers provide is the capability to counteract torsional vibrations arising with frequencies proportional to the mean operating speed. This is in particular the case with Internal Combustion Engines (ICE) where the induced vibrations are caused by the combustions process.
The above-mentioned feature is obtained thanks to the tuning of the absorber on the specific ICE vibration order, obtained by means of its geometric characteristics.
The main goal of this work is to model and simulate different types of CPVAs, where simple vibration models can be implemented for first investigations. Special attention has been given to CPVAs modelled with circular, cycloidal and epicycloidal paths, using a general-path equation system approach. The CPVA unit performance has been analyzed by means of an nth order sine-signal torque.
In this simulation environment, the paper aims to highlight the capabilities of absorbing vibrations of CVPAs, emphasizing the configurations with cycloidal and epicycloidal paths where the vibrations of the designated order can be reduced to a level very close to zero, for a major part of the ICE speed range.
Furthermore the present work provides a simulation approach as basis for CPVA parameters optimization.
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Citation
Vitaliani, E., Di Rocco, D., and Sopouch, M., "Modelling and Simulation of General Path Centrifugal Pendulum Vibration Absorbers," SAE Technical Paper 2015-24-2387, 2015, https://doi.org/10.4271/2015-24-2387.Also In
References
- Albers , A. Advanced Development of Dual Mass Flywheel (DMFW) Design - Noise Control for Today's Automobiles
- Reik , W. Torsional Vibrations in the Drive Train of Motor Vehicles - Principle Considerations 4 th International Symposium on Torsional Vibrations in the Drivetrain Baden-Baden, Germany 1990
- Fidlin , A. , Seebacher , R. DMF Simulation Techniques - Finding the Needle in the Haystack 8 th LuK Sysmposium 55 71 2006
- Carter , B.C. 1929 British patent No. 337 446
- Sarazin GF. U.S. Patent 2079226 May 1937
- Den Hartog , J. P. Mechanical Vibrations McGraw-Hill 1956
- Newland , D. E. Nonlinear Vibrations: A Comparative Study with Applications to Centrifugal Pendulum Vibration Absorbers PhD thesis Massachusetts Institute of Technology 1963
- Madden , J. F. 1980 United States Patent No. 4218187
- Denman , H. H. Tautochronic bifilar pendulum torsion absorbers for reciprocating engines Journal of Sound and Vibration 159 251 277 1992
- Borowski , V. , Denman , H. , Cronin , D. , Shaw , S. et al. Reducing Vibration of Reciprocating Engines with Crankshaft Pendulum Vibration Absorbers SAE Technical Paper 911876 1991 10.4271/911876
- Chao , C. P. , Lee , C. T. and Shaw , S. W. Stability of the unison response for a rotating system with multiple tautochronic pendulum vibration absorbers American Society of Mechanical Engineers Journal of Applied Mechanics 64 149 156 1996
- Theisen , T. M. Gravity's Effect on Centrifugal Pendulum Vibration Absorbers
- Shaw , S. W. Tuning and performance and stability in systems nearly tautochronic torsional vibration absorbers Department of Mechanical Engineering, Michigan State University and Bruce Geist Powertrain Virtual Engineering, Chrysler Group LLC
- Newland , D. E. Nonlinear aspects of the performance of centrifugal pendulum vibration absorbers ASME Journal of Engineering for Industry 86 257 263 1964
- Nester , T. M. , Schmitz , P. M. , Haddow , A. G. , Shaw , S. W. Experimental Observations of Centrifugal Pendulum Vibration Absorbers The 10th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery Honolulu Hawaii March 07-11 2004