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A design method for wheel tread profile of a variable gauge bogie

A technology of wheel tread and design method, which is applied in the direction of geometric CAD, can solve the problem of lack of wheel tread design method, etc., and achieve the effect of good wheel-rail geometric parameter sensitivity

Active Publication Date: 2021-07-27
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a method for designing wheel tread profiles of variable gauge bogies, which solves the problem of lack of wheel tread design methods suitable for different gauge rail systems

Method used

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  • A design method for wheel tread profile of a variable gauge bogie
  • A design method for wheel tread profile of a variable gauge bogie
  • A design method for wheel tread profile of a variable gauge bogie

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Embodiment Construction

[0043] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0044] Such as figure 1 Shown, a variable gauge bogie wheel tread profile design method, including the following steps:

[0045] S1. Set the initial contact position of the wheel and rail;

[0046] The initial contact position of the wheel-rail is to place the wheel on the track when the wheel set does not move laterally, and the distance between the contact point between the wheel tread and the rail surface and the center...

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Abstract

The invention discloses a method for designing the wheel tread profile of a variable-gauge bogie. The invention adopts a multi-layer optimization cycle design method, and can design the wheel tread profiles of variable-gauge bogies suitable for different gauges and different rail bottom slopes. The designed wheel tread profile can not only ensure the initial equivalent taper design target, but also have good sensitivity to wheel-rail geometric parameters and vehicle dynamic performance that meets the requirements of the standard.

Description

technical field [0001] The present application relates to the field of railway track technology, in particular to a method for designing the profile of a wheel tread of a variable-gauge bogie. Background technique [0002] There are large differences in railway gauge between different countries. Among them, most European countries, Turkey, Iran and China have a standard gauge of 1435mm; Russia uses a wide gauge of 1520mm; Bangladesh, Pakistan, India and other South Asian countries Most countries use wide gauges of 1676mm; countries such as Myanmar and Vietnam in Southeast Asia mostly use narrow gauges with a gauge of 1000mm. [0003] In order to realize intermodal transport of different gauge track systems, schemes such as unifying the gauge, transshipment, replacement of bogies, railway humpback transport vehicles and variable gauge bogies can be adopted. The variable-gauge bogie scheme, that is, the inner distance of the wheel set can be adjusted to suit different gauges,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17
Inventor 干锋戴焕云曾京邬平波高浩石怀龙
Owner SOUTHWEST JIAOTONG UNIV
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