Dynamic Analysis of Multibody System of LRT Car
Light Rail Transit or light rail vehicle could be alternative solution for urban mobility and environmental problems. LRT have benefits such as high capacity load, free traffic, and do not produce exhaust gas. In 2018, Palembang will operate LRT. LRT vehicle are designed and manufactured by PT Indus...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/23693 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Light Rail Transit or light rail vehicle could be alternative solution for urban mobility and environmental problems. LRT have benefits such as high capacity load, free traffic, and do not produce exhaust gas. In 2018, Palembang will operate LRT. LRT vehicle are designed and manufactured by PT Industri Kereta Api. <br />
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As the final part of the LRT train design process, a train dynamics analysis is required. Dynamic analysis aims to ensure the train can operate safely and comfortably. The dynamic behavior of the carriage is approached using multibody system model. <br />
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With the help of software, multibody systems is simulated on various operating conditions to evaluate train performance. UIC 518 standards are used to evaluate train performance on tangent and curve track. On the curve track a comparison of bolster usage of forces on the contact of the wheel and rails. Comfort and effect on human health are evaluated using Sperling Comfort Index criteria. In addition, the calculation of natural frequencies with the vibration mode of the train body. <br />
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Based on the simulation results, the LRT trains couldbe judged stable up to the maximum design speed on a straight path. The maximum speed of the LRT train on the minimum arch is 45 km / h. The use of bolster proved to reduce steering force and lateral-vertical force ratio. The Palembang LRT train is considered comfortable to drive with a comfort index value below 2.5 on the Sperling Comfort Index scale. Bolster effect on the maximum speed of the train as it passes the cornering path. <br />
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In further research it is necessary to consider the interconnection forces in the train series. Validation of the simulation results should be done by testing the LRT Palembang vehicle on the actual track. |
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