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Dynamic Characteristics of Viscous-Friction Dampers by Simultaneous Vibration Displacement Measurement at Two Points
Technical Paper
2001-01-0281
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
The dynamic characteristics of conventional viscous-friction dampers are investigated in this paper by adopting simultaneous vibration measurement method at two points. The vibration displacements of the damper casing and the inertia ring can be simultaneously measured in this method. It has become possible that the more detailed dynamic characteristics of the viscous-friction damper can be grasped by the method. Especially, it is an effective method to grasp the behaviors of the inertia ring and the damper casing for clarifying the effect of the silicone fluid on the torsional vibration of crankshaft system. The damper casing was made of acrylic resin in order to measure the behavior of the inertia ring on engine operation. It is possible to measure the torsional vibration displacements waveforms by the optical signals from pulse tapes stuck in both peripheral sides of the damper casing and the inertia ring. And, the dynamic characteristics of the silicone fluid were investigated by changing the viscosity of the silicone fluid and the clearance between the damper casing and the inertia ring. As the experimental results, it is shown in detail that the torsional vibration of the engine crankshaft system is greatly influenced by the peripheral gap, the lateral gap and the viscosity of silicone oil of the viscous damper, and that the values of the peripheral and lateral gaps between the outside of the annular seismic - mass and the inside of the damper casing given by the widely-adopted BICERA's empirical formula are not always optimum on the every viscosity of the filled silicone fluid of the viscous damper.
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Authors
- Tomoaki Kodama - Dept. of Mech. Eng., Faculty of Eng., Kokushikan Univ.
- Katsuhiko Wakabayashi - Dept. of Mech. Eng., Faculty of Eng., Kokushikan Univ.
- Yasuhiro Honda - Dept. of Mech. Eng., Faculty of Eng., Kokushikan Univ.
- Shoichi Iwamoto - Advanced Research Institute for Science and Eng., Wasada Univ.
Citation
Kodama, T., Wakabayashi, K., Honda, Y., and Iwamoto, S., "Dynamic Characteristics of Viscous-Friction Dampers by Simultaneous Vibration Displacement Measurement at Two Points," SAE Technical Paper 2001-01-0281, 2001, https://doi.org/10.4271/2001-01-0281.Also In
References
- WAKABAYASHI K. HONDA Y. KODAMA T. et al. The Dynamic Characteristics of Torsional Viscous-Friction Dampers on Reciprocating Engine Shaftings SAE 1992 Transactions , Journal of Engines 921726 101 1993 1734 1754
- Georgian J. C. et al. Torsional Viscous-Friction Dampers Transactions of American Society of Mechanical Engineers 48-A-67 1949 389 399
- HIRAYAMA D. et al. Characteristics of a Torsional Vibration Damper of Viscous-Shear Type Attached to a Multi-Cylinder Diesel Engine Transactions of the Japan Society of Mechanical Engineers in Japanese 27 180 1961 1377 1387
- SEKI T. et al. An Experimental Study on the Absorbed Energy by the Viscous Torsional Vibration Bulletin of Science and Engineering Damper Bulletin of Science and Engineering Research Laboratory Waseda University in Japanese 30 1965 51 57
- SEKI T. et al. Characteristics of a Viscous-Torsional Vibration Damper Attached to a High-Speed Multi-Cylinder Diesel Engine Bulletin of Science and Engineering Research Laboratory Waseda University in Japanese 35 1966 31 39
- IWAMOTO S. Experimentelle Forschung über die Effektive Viskosität des Silkonöls für Viskose Drehschwingungsdämpfer Journal of the Marine Engineering Society in Japan in Japanese 8 12 1973 S29 S42
- IWAMOTO S. Experimentelle Untersuchung über die Temperaturerhöhung des Wirkungsöls in der Viskosen Drehschwingungsdämpfer Journal of the Marine Engineering Society in Japan in Japanese 12 4 1977 290 299
- IWAMOTO S. Study on the Effective Viscosity of Working Oil in Viscous Torsional Vibration Damper of Diesel Engine, Second Report: Complex Viscosity of Working Oil in Damper of High Speed Engine Journal of the Marine Engineering Society in Japan in Japanese 18 10 1983 795 800
- IWAMOTO S. et al. Effective Viscosity of Working Oil in Viscous Torsional Vibration Damper of Diesel Engine, Third Report: Complex Viscosity of Working Oil in Damper of Low Speed Engine Journal of the Marine Engineering Society in Japan in Japanese 18 12 1983 975 981
- WAKABAYASHI K. et al. Analysis of Vibrations of Reciprocating Engine Shaftings by Transfer Matrix Method, The Fourth Report: Torsional Vibration Stress of a Crankshaft with a Viscous Fluid Damper Journal of the Marine Engineering Society in Japan in Japanese 19 1 1984 24 33
- IWAMOTO S. et al. The Development of the Torsional Vibration Damper of Viscous Shear Type with Controllable Elasticity Effect Journal of the Marine Engineering Society in Japan in Japanese 21 3 1986 215 222
- OKAMURA H. et al. Development of High-Viscosity Damper Society of Automotive Engineers of Japan Review 8 4 1987 80 83
- ASAMI T. et al. Damping Characteristics of Fluid Dampers, -Oil Film Damper, Oil Damper and Air Damper- Transactions of the Japan Society of Mechanical Engineers in Japanese C 57 534 1991 437 445
- SATOH Y. The Reductive Performance of the Dynamic Absorbers and Dynamic Properties of the Viscoelastic Absorber Elements Transactions of the Japan Society of Mechanical Engineers in Japanese C 57 534 1991 446 452
- SHIMIZU H. Viscous Type Torsional Damper for Engine Crankshaft Internal Combustion Engine in Japanese 30 3 1991 33 39
- ASAMI T. et al. Effect of Compressibility of Oil on an Oil Transactions of the Japan Society of Mechanical Engineers in Japanese C 58 549 1992 1592 1600
- SATO Y. et al. Suppression of Torsional Vibrations by a Partitioned Hollow Rotor Containing Liquid Transactions of the Japan Society of Mechanical Engineers in Japanese C 59 557 1993 17 23
- WAKABAYASHI K. HONDA Y. KODAMA T. et al. The Effect of Typical Torsional Viscous-Friction Damper on the Reduction of Vibrations in the Three Dimensional Space of Diesel Engine Shaftings SAE 1993 Transactions , Journal of Engines 102 1994 1852 1872
- SATO Y. et al. Suppression of Torsional Vibrations by a Sectored Hollow Cylinder Containing Liquid, - Observation of Surface Wave- Transactions of the Japan Society of Mechanical Engineers in Japanese C 59 569 1994 44 49
- SHIMODA I. Study of High Viscous Damper, - Modeling of Viscoelasticity and Proposition of Design Method- Transactions of the Japan Society of Mechanical Engineers in Japanese C 60 570 1994 476 481
- SATO Y. Suppression of Torsional Vibrations by a Sectored Hollow Cylinder Containing Liquid, -Effect of Coriolis Force- Transactions of the Japan Society of Mechanical Engineers in Japanese C 61 587 1995 2839 2845
- YAMADA G. Torsional Damper, Internal Combustion Engine in Japanese 5 48 1996 68 69
- YAMAZAKI Y. et al. Experimental and Computation Analysis for Torsional Vibration Crankshaft System with Viscous Torsional Damper Society of Automotive Engineers of Japan, Proceeding of 1999 Autumn Convention in Japanese 46-99 1999 13 16
- Den Hartog, J. P. “ Mechanical Vibrations ” McGraw-Hill Book Company Inc. 1956 185 186
- IWAMOTO, S. WAKABAYASHI, K. KODAMA, T. A Study for the Characteristics of Torsional Vibration Damping in High-Speed Diesel Engine, The Third Report: Engine Damping in an Engine System with a Viscous Torsional Vibration Damper The Science and Engineering Reports of Saitama University C 16 1983 15 19
- HIKONO K. et al. Torsional Damper of Diesel Engine for Heavy-Duty Vehicles Journal of Society of automotive Engineers of Japan in Japanese 38 12 1984 1440 1447
- B.I.C.E.R.A. “ A Handbook on Torsional Vibration ” Cambridge at the University Press 1958 520 558
- Wilson W. Ker “ Practical Solution of Torsional Vibration Problems ” Volume Four, Devices for Controlling Vibration Third 1968 372 389 Chapman & Hall Ltd.
- IWAMOTO S. Eine Betrachtung von Optimalen Dampfungskonstante des viskosen Drehschwingungsdampfers an den Journal of the Marine Engineering Society in Japan in Japanese 9 2 1974 206 217
- IWAMOTO S. et al. Untersuchung über die Effektive Viskosität des Wirköles im Viskose-Drehschwingungsdämpfer bei Dieselmotor, -Erster Bericht: Auswirkungen des Imaginären Terms der Komplexen Viskosität Journal of the Marine Engineering Society in Japan in Japanese 17 6 1982 520 526
- WAKABAYASHI, K. SHIMOYAMADA, K. KODAMA T. et al. A Study on the Torsional Vibration Characteristics of Crankshaftings with a Viscous Fluid Damper, The First Report: Complex Damping Coefficient of Dampers Transaction of the Kokushikan University, Faculty of Engineering in Japanese 17 1984 54 62
- WAKABAYASHI K. SHIMOYAMADA K. KODAMA T. HONDA Y. et al. A Study of Torsional Vibration Characteristics of Diesel Engine Shaftings with a Viscous Fluid Damper Society of Automotive Engineers of Japan, Proceeding of 1991 Autumn Convention in Japanese 912 1991 3.73 3.76
- NUMAJIRI S. Optimum Design of Torsional Damper Society of by Predicting Generation of Heat Society of Automotive Engineers of Japan, Working Group, Damping Technology by Automotive, Technical Report Series 23 in Japanese 4.6 1986 227 234
- WAKABAYASHI K. HONDA Y. T. KODAMA et al. Study on Optimum Torsional Viscous-Friction Damper Japan Society of Mechanical Engineers, Proceeding of the Dynamics and Design Conference '98 in Japanese A 98-8(I) 1998 92 95
- SHIMOYAMADA K. WAKABAYASHI K. KODAMA T. et al. A Study on the Torsional Vibration Characteristics of Crankshaftings with a Viscous Fluid Damper, The Third Report: A Consideration on the Optimum Kinematic Viscosity of the Viscous Fluid Dampers Transaction of the Kokushikan University, Faculty of Engineering in Japanese 19 1986 19 26
- OKAMURA H. Study of Torsional Damper Optimum Design, 1st Report, Complex Damping Property and its Decision of Viscous Damper Transactions of the Japan Society of Mechanical Engineers in Japanese C 61 623 1998 2505 2512