Rail vehicle weight calculation method

Abstract

The invention discloses a rail vehicle weight calculation method. The method comprises the following steps of: analyzing a vehicle body by adoption of a rigid body module assumption method; dividing arail vehicle into a plurality of rigid body modules by taking free hinge as demarcation points, and taking fixed hinges at the lower ends of adjacent rigid body modules as reference hinge points; carrying out calculation to ensure that X and Y planes of a global coordinate system of a model are located on a rail surface, an X axis points to a first bogie module, a coordinate origin of the globalcoordinate system is located at the structure center of a non-power bogie in a third bogie module, the X and Y planes of a local coordinate system of each module are located on the rail surface, the Xaxis directions of the local coordinate systems are same as the X axis direction of the global coordinate system, and coordinate originals of the local coordinate systems are respectively located atthe structure centers of the bogies or vehicle bodies in the modules; and establishing a vehicle mechanical model, establishing a mechanical number and a mechanical equation of characteristic at eachhinge point, and carrying out calculation by adoption of a multi-condition analysis method. According to the method, a method and guidance are provided for the weight calculation of multi-module multi-floating car hinge type rail vehicles.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a method for calculating the weight of rail vehicles. Background technique [0002] The weight management, axle load calculation, wheel load calculation, and moment of inertia calculation of rail vehicles are the basis of vehicle design and the core technology of vehicle research. In the weight calculation of urban rail vehicles, many factors (such as passengers, vehicle marshalling and coupling methods, and equipment layout methods) affect mass distribution and calculation of axle load and wheel weight. [0003] In the prior art, there are mature axle load and wheel load calculation methods for vehicles formed by two-axle and three-axle bogies, but the multi-module multi-floating car tram has particularity: [0004] 1) A single module vehicle is carried by a bogie; [0005] 2) Floating car modules are mounted between vehicles with bogies; [0006] 3) The modules are conn...

AI Technical Summary

Problems solved by technology

[0008] In the prior art, the traditional rail vehicle weight calculation method cannot adapt to the weight calculation of multi-module and multi-floating cars, and cannot accurately obtain the axle load, wheel weight, and moment of inertia of multi-module and multi-floating cars. use the usual method to calculate

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