Test method and system of train pneumatic performance simulation test apparatus

Abstract

The invention relates to a testing method and system for a train aerodynamic performance simulation testing device, which is used for testing various performance parameters of high-speed running train model in simulation test. The testing method comprises: arranging a train-carried data collection system in the train model, which is used for dynamic pressure tests of each testing point of the train model and tests of speed of the train model; arranging a ground data collection system on ground of the track, which is used for testing ground dynamic pressure and environmental parameters when the train model passes by the ground testing points. The invention is capable of real-timely recording dynamic change process of the train and ground air pressure, and accurately testing speed of the train model, thereby realizing tests of various test parameters such as dynamic pressure, speed, and the like, required for the simulation test, and obtaining test data of real-time and accurate train and ground dynamic pressure change data.

Description

technical field [0001] The invention belongs to the technical field of train aerodynamic performance simulation tests, and in particular relates to a method for testing various parameters of a train aerodynamic performance simulation dynamic model test device for simulation tests, and the test system. Background technique [0002] The train is a large object running at high speed on the ground. The sudden change of air pressure caused by the intersection of two opposite trains on the double line and the train passing through the tunnel will have a serious impact on driving safety, passenger comfort and the surrounding environment, such as causing excessive Large deformation, destroying the structure of the car body, smashing the window glass, damaging the air intake device of the air conditioning system, sucking down the objects of the passing train, and the transient yaw of the train is too large (may cause the derailment of the wheel-rail train, or damage the guide of the m...

AI Technical Summary

Problems solved by technology

When Japan built the world's first high-speed railway, it failed to recognize the serious impact of train crossing and tunnel passing aerodynamics on driving safety and passenger comfort, resulting in a small double-track spacing and tunnel cross-sectional area (which can save engineering investment ), although Japan has done a lot of research on the shape of improving the aerodynamic performance of the train in the following decades (the length of the streamlined head reaches 15m), but it is still restricted by the double-track spacing and the cross-sectional area of ​​the tunnel

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