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http://dx.doi.org/10.5762/KAIS.2018.19.7.275

Development of a Interface Structure of Bogie and Carbody in Mountain Tram running on sharp Curves  

Seo, Sung-il (Advanced Railroad Vehicle Division, Korea Railroad Research Institute)
Mun, Hyung-Suk (New Transportation Innovative Research Center, Korea Railroad Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.7, 2018 , pp. 275-282 More about this Journal
Abstract
Mountain trams are an environmental-friendly transportation system that run wirelessly on an embedded track constructed on previous mountain roads, and can run despite the frozen road. On the other hand, there is some difficulty on sharp and steep tracks. In this study, after possible technical problems were defined in mountain trams running on a sharp and steep track, the design solutions for the interface structure of bogie and carbody were proposed. In addition, a prototype was made and its performance was tested to verify the solutions. Because the difference in the distance of the inner and outer rails on a sharp curve is severe enough to interrupt running, independent rotating wheels with different angular speeds were developed and applied. To prevent derailment due to the large attack angle and lateral force caused by the previous vehicle of 2bogie-and-1carbody on the sharp curve, a vehicle with 1bogie-and-1carbody was designed and applied. A prototype vehicle of 1bogie-and-1carbody with independent rotating wheels was made to improve the performance during the test running on a small track. A coupler was designed to absorb the large rotations of 3 degrees-of-freedom between the carbodies of a mountain tram running on the steep curved track. After a small scale prototype was made, the performance was verified by a function test.
Keywords
Bogie; Carbody; Coupler; Independent Rotating Wheel; Interface Structure; Large Rotation; Mountain Tram; Sharp Curve; Steep Gradient;
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