High-speed railway track modal design method for inhibiting train-track coupling resonance

A coupling resonance, high-speed railway technology, applied in the field of rail transit, can solve problems such as resonance, vehicle operation comfort and safety issues, poor mode matching degree, etc., to achieve the effect of avoiding coupling resonance and comprehensive mode matching considerations
CN113128091AActive Publication Date: 2021-07-16SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2021-07-16

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Abstract

The invention discloses a high-speed railway track modal design method for inhibiting train-track coupling resonance, which comprises the following steps of: calculating a vehicle structure modal and a track structure modal according to information of a vehicle and a high-speed railway track, and analyzing whether matching results of the two modals are overlapped or not; if overlapping occurs, recalculating the track modality by changing one or more of the track structure parameters, so that the track structure modality range avoids the vehicle structure modality range; if no overlapping exists, a vehicle-rail rigid-flexible coupling dynamic performance analysis model is constructed, dynamic simulation analysis is conducted on the constructed vehicle-rail rigid-flexible coupling dynamic performance analysis model, whether abnormal vibration caused by resonance exists or not during vehicle running is judged, If the abnormal vibration exists, the vehicle-rail rigid-flexible coupling dynamic performance analysis model is started; according to the method, the vibration influence of the track structure on the vehicle structure is considered from the perspective of resonance, and the method has certain guiding significance on construction or transformation of the high-speed railway.
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Description

technical field

[0001] The invention belongs to the technical field of rail transit, and in particular relates to a high-speed rail track mode design method for suppressing train-line coupling resonance. Background technique

[0002] The vehicle-track is a large system that excites each other, and the overall mode matching degree determines the coupling vibration of the vehicle structure and the track structure, and affects the running stability and safety of the vehicle to a certain extent. In fact, the vehicle structure includes car body structure, suspension structure, frame structure, wheel set structure, and track structure includes rail structure and track plate structure. Among these many structures, the modal response of each structure is different, which leads to vehicle-track resonance if the modal matching is not good, which causes vehicle running comfort and even safety issues. In recent years, with the further planning of high-speed railway construction, more a...

Claims

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