Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Vibration isolation performance test and characteristic analysis of a powertrain mount based on vibration isolation rate and dynamic transmission force testing
| DOI: | 10.11809/bqzbgcxb2024.05.014 |
| Keywords: | armored vehicles; powertrain suspension; vibration acceleration; support force; vibration isolation rate |
| Abstract: | A fault diagnosis test was conducted to address the issue of damage to the right engine mount in the powertrain of a certain type of armored vehicle, which has a shorter lifespan compared to other point mounts. By measuring the vibration acceleration at the upper and lower support positions of the powertrain mount, as well as the support force data of the four suspension system pads, analysis and research have found that among the four support points of the suspension system, the vertical vibration isolation rate of the right engine mount support point is the highest, and the vertical support force of the mount is greater than that of the other three positions. This is precisely the direct reason for the low service life of the suspension system at this location. Finally, optimization suggestions were proposed based on the test analysis results. It is recommended to consider optimizing the powertrain suspension system of this type of vehicle from the aspects of load bearing, engine operating frequency range, suspension structure, form and stiffness, damping, and multi directional vibration isolation requirements, in order to improve the overall vibration isolation effect of the powertrain suspension system. |
| Issue: | Vol. 45 No. 5 (2024) |
| Published: | 2024-05-31 |
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