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Power Spectral Density Analysis of Vehicle Vibration Using the NASTRAN Computer Program
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English
Abstract
Frequency response and power spectral density analyses are implemented on the NASTRAN computer program for the purpose of assessing the vibratory response of automotive vehicles. A review of theoretical concepts related to the frequency domain techniques is presented, followed by a derivation of the equations of vertical motion for a linearly elastic automotive vehicle. Special emphasis is given to the discussion of random loading, and the cross-spectral density matrix for the terrain input to a four-wheel vehicle is derived. Example calculations are performed for a compact-size vehicle exposed to moderately severe road roughness.
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Citation
Howell, L., "Power Spectral Density Analysis of Vehicle Vibration Using the NASTRAN Computer Program," SAE Technical Paper 740328, 1974, https://doi.org/10.4271/740328.Also In
References
- Butkunas A. A. “Power Spectral Density and Ride Evaluation.” SAE Transactions 75 Paper No. 660138 1966
- Van Deusen B. D. “Analytical Techniques for Designing Riding Quality into Automotive Vehicles.” SAE Transaction 76 Paper No. 670021 1967
- Pradko F. Lee R. A. “Vibration Comfort Criteria.” SAE Transactions 75 Paper No. 660139 1966
- Thomson W. T. “Vibration Theory and Applications.” Prentice Hall 1965
- Hurty W. C. Rubinstein M. F. “Dynamics of Structures.” Prentice Hall 1964
- Crede C. E. “Shock and Vibration Concepts in Engineering Design.” Prentice Hall 1964
- Roberts J. B. “On the Harmonic Analysis of Evolutionary Random Vibration.” J. of Sound and Vibration 2 3 1965 336 352
- Barnoski R. L. Maurer J. R. “Mean-Square Response of Simple Mechanical Systems to Nonstationary Random Excitation.” J. of Applied Mechanics, Trans ASME 91 June 1969 221 227
- Page C. H. “Instantaneous Power Spectra.” J. of Applied Physics 23 1 January 1952 103 106
- Lin Y. K. “Probabilistic Theory of Structural Dynamics.” McGraw-Hill 1967
- Dowell E. H. “Free Vibrations of a Linear Structure with Arbitrary Support Conditions.” J. of Applied Mechanics, Trans. ASME September 1971 595 600
- Hallquist J. Snyder V. W. “Linear Damped Vibrating Structures with Arbitrary Support Conditions.” J. of Applied Mechanics, Trans. ASME March 1973 312 313
- Bogdanoff J. L. Cote L. J. Kozin F. “Introduction to a Statistical Theory of Land Locomotion-II Ground Roughness.” J. of Terra-mechanics 2 3 1965 17 27
- Walls J. H. Houbolt J. C. Press H. “Some Measurements and Power Spectra of Runaway Roughness.” NACA TN 3305 November 1954
- Dodds C. J. “The Laboratory Simulation of Vehicle Service Stress,” ASME Design Engineering Technical Conference Cincinnati, Ohio September 1973 ASME Paper No. 73-DET-24
- Lins W. F. “Vehicle Vibration Analysis Using Frequency Domain Techniques.” J. of Engineering for Industry, Trans. ASME 91 November 1969 1075 1080
- Robson J. D. “Deductions from Profile-Excited Random Vibration Response.” Proceedings of the 12th International Congress of Applied Mechanics Stanford 1968 350 355