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TECHNICAL PAPERS: Internal Combustion Engines

Fully Coupled Rigid Internal Combustion Engine Dynamics and Vibration—Part II: Model-Experiment Comparisons

[+] Author and Article Information
D. M. W. Hoffman, D. R. Dowling

Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109-2121

J. Eng. Gas Turbines Power 123(3), 685-692 (Jan 01, 2001) (8 pages) doi:10.1115/1.1370400 History: Received July 01, 2000; Revised January 01, 2001
Copyright © 2001 by ASME
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References

Norling, R. L., 1978, “Continuous Time Simulation of Forces and Motion Within an Automotive Engine,” SAE paper No. 780665.
Shiao,  Y.-J., Pan,  C.-H., and Moskwa,  J. J., 1994, “Advanced Dynamic Spark Ignition Engine Modeling for Diagnostics and Control,” Int. J. Veh. Des., 15, pp. 578–596.
Snyman,  J. A., Heyns,  P. S., and Vermeulen,  P. J., 1995, “Vibration Isolation of a Mounted Engine Through Optimization,” Mech. Mach. Theory, 30, pp. 109–118.
Suh, C.-H., and Smith, C. G., 1997, “Dynamic Simulation of Engine-Mount Systems,” SAE paper No. 971940.
Hoffman, D. M. W., and Dowling, D. R., 1999, “Modeling Fully Coupled Rigid Engine Dynamics and Vibrations,” SAE Paper No. 1999-01-1749, Proceedings, 1999 SAE Noise and Vibrations Conference, Vol. 2, Traverse City, MI, Society of Automotive Engineers, Warrendale, PA, pp. 747–755.
Hoffman,  D. M. W., and Dowling,  D. R., 2001, “Fully Coupled Rigid Engine Dynamics and Vibrations—Part I: Model Description,” ASME J. Eng. Gas Turbines Power, 123, pp. 677–684.
Hoffman, D. M. W., 1999, “In-Line Internal Combustion Engine Dynamics and Vibration,” Ph.D. thesis, University of Michigan, Ann Arbor, MI.
Hoffman,  D. M. W., and Dowling,  D. R., 1999, “Limitations of Rigid Body Descriptions for Heavy-Duty Diesel Engine Vibration,” ASME J. Eng. Gas Turbines Power, 121, pp. 197–204.
Zhao, H., and Reinhart, T., 1999, “The Influence of Diesel Engine Architecture on Noise Levels,” SAE Paper No. 1999-01-1747, Proceedings, 1999 SAE Noise and Vibrations Conference, Vol. 2, Traverse City, MI, Society of Automotive Engineers, Warrendale, PA, pp. 729–735.
Winton (Hoffman),  D. M., and Dowling,  D. R., 1997, “Modal Content of Heavy-Duty Diesel Engine Block Vibration,” SAE Trans., 106, Section 6, Part 2, pp. 2802–2811 (SAE Paper No. 971948).
Nakada,  T., and Tonosaki,  H., 1994, “Study of the Excitation Mechanism of Half-Order Vibrations in an In-Line 4-Cylinder Internal Combustion Engine,” Trans. Jpn. Soc. Mech. Eng., Ser. C, 60, No. 577, pp. 2977–2983.
Reinhart, T. E., 1997, private communication, Cummins Engine Company, Inc., Columbus, IN.

Figures

Grahic Jump Location
Measured and simulated engine mount force magnitudes versus frequency for an in-line six-cylinder heavy-duty Diesel engine running at a speed of 1200 rpm with a load torque of 2061 N-m. The simulated engine used the optimized parameters given in Tables 1 and 2 and component imperfections listed in Table 5. The solid line denotes the experimental data. The ×’s denote the simulation results at half and whole engine orders.
Grahic Jump Location
Same as Fig. 1 except the engine is running at a speed of 2100 rpm with a load torque of 1640 N-m
Grahic Jump Location
Measured and simulated engine mount forces versus time for an in-line six-cylinder heavy-duty Diesel engine running at a speed of 1200 rpm with a load torque of 2061 N-m. The heavy solid line is the experimental data. The light solid line is the simulated engine with the optimized parameters given in Tables 1 and 2. The dotted line is the simulated engine with the nonoptimized parameters given in Tables 1 and 2. Both simulations use the component imperfections listed in Table 5. All three data sets are low-pass filtered to include only vibration frequencies up to third engine order and the time duration shown corresponds to two engine rotations (720 crankangle degrees).
Grahic Jump Location
Same as Fig. 3 except the engine is running at a speed of 2100 rpm with a load torque of 1640 N-m

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