Structural Strength Analysis of Bogie for Suspended PRT Vehicles
[Objective] Suspended PRT (personal rapid transit) vehicles represent a new type of transportation, with bogie as one of its core components. The structural strength of the bogie directly impacts the operational safety of the vehicle, making it essential to conduct analysis on structural strength. [...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Urban Mass Transit Magazine Press
2025-06-01
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| Series: | Chengshi guidao jiaotong yanjiu |
| Subjects: | |
| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.20230466.html |
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| Summary: | [Objective] Suspended PRT (personal rapid transit) vehicles represent a new type of transportation, with bogie as one of its core components. The structural strength of the bogie directly impacts the operational safety of the vehicle, making it essential to conduct analysis on structural strength. [Method] A new type of suspended PRT vehicle bogie is proposed and taken as research object for force analysis, and a force topology configuration diagram is established. Considering the specific operational scenarios and running mechanisms of suspended PRT, seven operating conditions are analyzed in detail: entering a curve, braking while entering a curve, turning, climbing (with a gradient of 26%), vehicle front-axis right-front tire failure, vehicle back-axis left-rear tire failure, and full-load stationary condition. A dynamics model is developed to analyze the force transmission path, thereby determining the load magnitude for each working condition. A finite element model of the bogie frame is constructed to compute and analyze the structural strength under each working condition, and to assess whether the design strength meets the required standards. [Result & Conclusion] A comprehensive structural strength calculation and analysis method applicable to the bogie of suspended PRT vehicles is established. The calculation results indicate that the maximum stress on the bogie under all condition is 301.9 MPa, occurring at the weld joint bet-ween the front right connecting seat and the right main longitudinal beam during the curve entry condition. This value is below the allowable stress of the material, indicating compliance with strength design requirements. |
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| ISSN: | 1007-869X |