A railway vehicle bottom equipment rubber supporting base support reaction force acquiring method

Abstract

The invention relates to a railway vehicle bottom equipment rubber supporting base support reaction force acquiring method comprising the steps of firstly, establishing a bottom equipment rubber supporting base support reaction force mechanical equation; secondly, solving the rubber supporting base support reaction force mechanical equation to acquire the support reaction force of each rubber supporting base; thirdly, judging whether the overturning condition of bottom equipment meets the bottom equipment installing requirements, determining that the support reaction force of each rubber supporting base obtained in the second step is the final support reaction force if yes, and, if no, optimizing the static deflection of rubber elements and acquiring the support reaction force of the optimized rubber supporting bases until the installing requirements are met. Compared with the conventional method, the method has the advantages of clear principle, wide application, high speed and high precision.

Description

technical field [0001] The invention relates to the field of design of a rubber support seat of an under-vehicle equipment of a railway vehicle, in particular to a method for obtaining a support reaction force of a rubber support seat of an under-vehicle equipment of a railway vehicle. Background technique [0002] In recent years, in order to increase the passenger capacity of railway vehicles, ensure the adhesion state of wheels and rails, and improve the braking performance, the traction power of railway vehicles, especially high-speed EMUs, mostly adopts power dispersion. For railway vehicles with distributed power, large-scale equipment such as traction converters, transformers and auxiliary converters will be arranged under the chassis of the car body. In order to reduce the influence of the vibration of the equipment under the vehicle on the vibration of the whole vehicle system, these large-scale equipment under the vehicle usually use rubber damping elements for vib...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two main ways to obtain the reaction force of the rubber support seat of the equipment under the railway vehicle: 1. Using dynamic software simulation analysis; this method needs to establish a dynamic model of the vehicle body and equipment under the vehicle, and add force sensors for simulation calculation, and finally output the result; however, this method requires many dynamic parameters for calculation, the model establishment is cumbersome, the solution time is long, and the actual application is inconvenient. Data, by analyzing sensor data to obtain support reaction force test results

This method obtains the support reaction force through testing, and the result is relatively accurate, but it requires a corresponding rubber support seat entity, and the cost is high, and it is not easy to implement, especially in the initial stage of design, there is often a lack of formed rubber support seat entities

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