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Frequency Domain Considerations in Vehicle Design for Optimal Structural Feel
Technical Paper
2000-01-1344
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
A vehicle perceived to be solid and vibration free is said to have good “structural feel”. Specification for vehicle design to achieve a good stuctural feel depends heavily on the management of resonant modes existing in the low frequency domain. These resonances include vehicle rigid body, chassis subsystem, body flexure and large component modes.
A process to specify the placement of resonant modes in the low frequency domain is discussed. This process allocates blocks within the frequency domain for classes of resonant modes stated above. Segregation of these blocks of resonant modes in the frequency domain limits modal interaction, thereby minimizing sympathetic vibration.
Additionally, known areas of human body sensitivity within this low frequency domain are stated. Lastly, known vibration inputs are identified. This process is cognizant of these inputs and avoids overlapping with the vehicle resonant modes to provide further insurance of minimal modal interaction.
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Citation
Hamilton, D., "Frequency Domain Considerations in Vehicle Design for Optimal Structural Feel," SAE Technical Paper 2000-01-1344, 2000, https://doi.org/10.4271/2000-01-1344.Also In
SAE 2000 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V109-6; Published: 2001-09-15
Number: V109-6; Published: 2001-09-15
References
- Handbook of Human Vibration Griffin M.J. 1990 297 300
- Griffin M.J. 1990 et al 319
- Griffin M.J. 1990 et al 383
- Griffin M.J. 1990 et al 342 344
- Griffin M.J. 1990 et al 383