The definition, advantages, domestic development status of low-floor vehicles and the difference between the gauges of low-floor vehicles and subway vehicles are briefly described. The main composition, marshalling form and basic characteristics of bogies of 100% low-floor vehicles are demonstrated. The gauge calculation method provided by the CJJ/96 standard is appropriately modified for use in low-floor vehicles, and the calculation formulas for the same direction and the reverse direction of the lateral movement and roll of the vehicle body are respectively discussed. A program is written to calculate the displacement, and then the result is converted into the gauge of the vehicle. The validity of the formula is verified.
According to the structure and suspension characteristics of low-medium speed maglev trains, and referring to the calculation parameters specified in the existing limit calculation standards, the parameters required for the calculation of the dynamic envelope of the low-medium speed maglev trains are determined. On this basis, the calculation program of gauges is further compiled, the typical working conditions are selected, and the vehicle dynamic envelope of the vehicle in the typical state is calculated.
Nowadays, the scale of cities continues to expand and rail transit is developing day by day. It is more and more important to ensure the efficient and safe operation of rail transit. As an important factor affecting the safe operation of subway lines, the profile of the tunnel section is constantly updated with the development of the line. Efficient, automated, and intelligent tunnel section detection new technology has become a research trend and hot spot. This paper analyzes the current situation of tunnel section detection technology in China and abroad. Introduced a metro tunnel section test technology based on 350 degree laser scanner. The system has the characteristics of digitalization, miniaturization, modularization, high integration and real-time. Apply the product to an existing subway line, analyze and process the obtained data, and obtain specific information about the intrusion limit hazard on the line, so as to verify the feasibility of the system.
Suspended monorail transportation has gradually become a research hotspot of urban rail transit at present and in the future due to its low cost, short construction period, and small footprint. With the development of electronic technology and laser technology, non-contact methods have been used more and more to detect railway vehicle gauges, which has improved the efficiency and accuracy of detection. In this paper, a 350-degree laser scanner is installed on a suspended line for vehicle gauge detection, and the detection data are analyzed and processed to obtain the dynamic envelope result and the maximum offset. Then it is compared with the dynamic envelope of the dynamic simulation to verify the validity and accuracy of the test method.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.