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Spindle-Based Engine Mount Load Analysis - Prediction and Correlation
Technical Paper
2007-01-1203
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Engine mount loads are mostly measured from load cells or calculated from measured engine accelerations. This paper introduces an innovative new method to calculate engine mount loads from measured spindle loads. The method starts from calculating suspension attachment loads to body or chassis frame, then calculating engine center of gravity accelerations, and finally calculating engine mount loads from engine inertia forces. This spindle-based engine mount load analysis method is validated by a vehicle with measurements by wheel force transducers and engine load cells. The correlation includes load time history, peak-to-peak load range, and pseudo-damage values. The correlations show good comparisons between measured and predicted in all the categories, especially for the high load components. It is recommended to implement this method in early vehicle design phases.
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Citation
Cao, C. and Medepalli, S., "Spindle-Based Engine Mount Load Analysis - Prediction and Correlation," SAE Technical Paper 2007-01-1203, 2007, https://doi.org/10.4271/2007-01-1203.Also In
References
- Jayakumar P. Wang D. Cline S. ‘Issues of Estimating Powertrain Mount Loads Using Measured Accelerations and Drive Torques for Durability Events’ SAE 2005-01-0626
- Backer M. Langthaler T. Olbrich M. Oppermann H. ‘The Hybrid Road Approach for Durability Loads Prediction’ SAE 2005-01-0628
- Tebbe J. Chidambaram V. Kline J. Scime S. Shah M. Tasci M. Zheng D. ‘Chassis Loads Prediction using Measurements as Input to an Unconstrained Multi-Body Dynamic Model’ SAE2006-01-0992
- Cao C. Medepalli S. ‘Truck Frame Motion Prediction and Correlation’ SAE 2006-01-1257