Dynamic Vibration Analysis of Heavy Vehicle Truck Transmission Gearbox Housing Using FEA
The main objective of this original research article is to study the loose fixture mounting affect of heavy vehicle transmission gearbox housing. The studies were completed in three phases. In first phase the aim was to find the actual suitable boundary condition. After finding the boundary condit...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Eastern Macedonia and Thrace Institute of Technology
2014-09-01
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| Series: | Journal of Engineering Science and Technology Review |
| Subjects: | |
| Online Access: | http://www.jestr.org/downloads/Volume7Issue4/fulltext117414.pdf |
| Summary: | The main objective of this original research article is to study the loose fixture mounting affect of heavy vehicle
transmission gearbox housing. The studies were completed in three phases. In first phase the aim was to find the actual
suitable boundary condition. After finding the boundary condition in second phase the fixture bolts were loosened to
monitor the affect of looseness and in third phase the positional looseness based study were completed. The looseness of
transmission housing causes heavy vibration and noise. In order to prevent this noise and vibration the transmission
housing is tightly mounted on the chassis frame using bolts. In our design transmission housing is constraint on chassis
frame using 37 bolts. Truck transmission system determines the level of noise together with the chassis, engine and
bodywork. Vehicle transmissions under torsional vibration condition caused rattling and clattering noises. Reciprocity
Principle was used to determine the failure frequencies for transmission housing. In reciprocity principle gear and shafts
are suppressed and all the forces transmitted through the bearings are applied on the empty housing. FEA based ANSYS
14.5 has been used as analysis tool. The free vibration frequency for zero displacement condition varies from 1669 Hz to
2865 Hz and for loose transmission casing frequency varies from 1311 Hz to 3110 Hz. The analysis have theoretical and
practical aspects and useful for transmission housing structure optimization. |
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| ISSN: | 1791-2377 1791-2377 |