Design of Aluminium-Based Bus Superstructure Reinforcement and Analysis of The Strength Due to Rollover Accident
<p align="justify"> The numbers of motor vehicles especially cars in Southeast Asia especially in Indonesia rise year by year. The growth followed by an upward trend in the number of vehicle accidents. Rollover accident is the most deadly accident, as it takes the most lives in each...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/29283 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align="justify"> The numbers of motor vehicles especially cars in Southeast Asia especially in Indonesia rise year by year. The growth followed by an upward trend in the number of vehicle accidents. Rollover accident is the most deadly accident, as it takes the most lives in each occurrence. This caused needs of special analysis and deeply about rollover accident. <br />
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Rollover accident analysis can be done in two steps. The first one is done before the accident and the second one is done during the accident. The analysis before the accident is an analysis of the rollover accident probability in a car and the method to prevent it. One of the parameters which can determine rollover probability rating is the car center of mass height. The car center of mass height is determined by an empirical method with search the dominant car’s components mass. Then the car’s mass components position are determined using placing standard which has been build, so that obtained the car center of mass height for further, it converted to car’s rollover probability value. <br />
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Analysis during the accident is the testing about safety level of the car’s structure to prevent passengers and driver from fatality. The testing is done with two kinds of numerical methods with reference to regulation of FMVSS 216 from the United States which uses force method and regulation of UNECE R66 from Europe which uses energy method. All testings are imposed on the bus’s superstructure which has been changed its material to aluminium 6061 T6 to reduce the weight. Aluminium has lower strength than steel which usually buses use. Therefore reinforcements are conducted with adding the extruded roof edge, adding the web into the vertical pillar, and local thickening on significant energy absorber parts, so that the weight of superstructure will reduce and the superstructure will meet the regulations. <p align="justify"> |
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