Modeling method of tramcar and embedded rail coupling dynamics model thereof

A technology of embedded orbit and coupled dynamics, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., to achieve intuitive and visible effects, convenient use, and fast calculation effects

Active Publication Date: 2016-05-04
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the modeling methods for traditional wheel sets and traditional fastener track structures in vehicle-track coupling dynamics modeling are not applicable to tram-embedded track coupling dynamics modeling

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  • Modeling method of tramcar and embedded rail coupling dynamics model thereof
  • Modeling method of tramcar and embedded rail coupling dynamics model thereof
  • Modeling method of tramcar and embedded rail coupling dynamics model thereof

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] The invention discloses a modeling method of a tram and its embedded track coupling dynamic model, which specifically includes the following steps:

[0033] Step 1: Vehicle System Modeling

[0034] The modeling of the tram vehicle system is simplified to the modeling of the rigid body system, vehicle suspension system and workshop connection system. The vehicle suspension system includes primary and secondary suspension components (generally, the car body and frame are connected by secondary suspension, the wheel-to-axle box and frame are connected by primary suspension, and the weight of the vehicle body is transmitted to the bogie frame through secondary suspension. The weight of the car body and frame is transferred to the wheelset through the primary suspension.), considering the nonlinearity of the suspension components, a three-d...

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Abstract

The invention relates to the technical field of the modeling of a tramcar and a rail thereof, and discloses a modeling method of the tramcar and an embedded rail coupling dynamics model thereof. The modeling method specifically comprises the following steps: 1) vehicle system modeling: simplifying the modeling of a tramcar vehicle system into the modeling of a rigid body system, a vehicle suspension system and an inter-vehicle connection system; 2) the modeling of the embedded rail system: carrying out the modeling of a steel rail, high polymer filling materials, a rail plate and following foundations; and 3) the coupling modeling of a vehicle and a rail system: establishing the tramcar and the embedded rail coupling dynamics model, and carrying out nonlinear wheel rail relationship coupling modeling on the vehicle and the steel rail. The modeling method of the tramcar and the embedded rail coupling dynamics model thereof can carry out prediction evaluation analysis on dynamics characteristics including tramcar operation safety, stability, riding comfort and the like.

Description

technical field [0001] The invention relates to the technical field of trams, in particular to a modeling method for a tram and its embedded track coupling dynamics model. Background technique [0002] With the increase of urban traffic pressure, trams are vigorously developed in various cities due to their characteristics of large transport volume, fast speed, safety, punctuality, environmental protection, and energy saving. The operation safety, stability and riding comfort of trams are the core issues to ensure its rapid development. [0003] The two wheels of the vehicle's traditional wheel set are fixed and pressed on the same axle, and the left and right wheels rotate at the same speed. When running on a curve, the distance traveled by the wheelset on the inner and outer rails is not equal, and there will be a large slip between the wheels and rails, which intensifies the wear and noise between the wheels and rails. In order to achieve low-floor vehicles, modern tram...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 吕强焦洪林钱振地赵悦罗炯杨刚
Owner CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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