U-shaped capsule concave-convex coupling type outer windshield and railway vehicle

Abstract

The invention discloses a U-shaped capsule concave-convex coupling type outer windshield and a railway vehicle. The outer windshield comprises a front windshield, a rear windshield, a front mounting base and a rear mounting base, wherein the front windshield is connected to the front mounting base, the rear windshield is connected to the rear mounting base, The U-shaped capsule structures of the front windshield and the rear windshield are each provided with straight wall parts which are symmetrical left and right and an arc-shaped part located between the tops of the straight wall parts; eachstraight wall part comprises a bottom with the thickness gradually decreased, a middle with the unchanged thickness and a top with the side thickness gradually decreased from the inner side degree; the arc-shaped part of the front windshield comprises a first arc-shaped front end and an arc-shaped boss section; and the arc-shaped boss section of the front windshield makes contact with the arc-shaped concave table section of the rear windshield in a concave-convex coupling mode. The outer windshield can realize smooth connection of adjacent vehicle body end walls, improve the lateral deformation rigidity of the outer windshield, reduce the vibration of the windshield, reduce the driving resistance of a vehicle, reduce the cabin noise of a passenger car and prolong the service life of a product.

Description

Technical field[0001]The invention relates to the technical field of rail vehicles, and in particular to a U-shaped capsule concave-convex coupling external windshield of rail vehicles. The invention also relates to a rail vehicle provided with the U-shaped capsule concave-convex coupled outer windshield.Background technique[0002]As an important component of high-speed trains, the rubber outer windshield structure of high-speed trains is installed at the junction of the two carriages to make the car body surface smooth and smooth, which plays an important role in reducing drag and noise of high-speed trains. In addition, the rubber outer windshield has good flexibility and deformation ability, which can provide the displacement between the two cars when the train passes through the curve.[0003]Japan, France, Germany and other countries have applied external windshields relatively early, and the development of windshield structures abroad in China is rapid, from the rubber outer wind...

AI Technical Summary

Problems solved by technology

Similarly, in the process of optimizing the windshield of Japan’s FASTECH360S EMU, such problems caused by wind pressure loads also appeared. When the train’s running speed exceeds 300km / h, the outer windshield appears upturned.

[0009] Secondly, due to the particularity of the installation position of the outer windshield, its structural deformation and vibration under the action of aerodynamic loads make the aerodynamic force distribution at the end connection of the carriage uneven, which seriously affects the stability of the train operation and the safety of the outer windshield structure.

[0010] Furthermore, when the outer windshield has a large valgus flexion, a large gap is formed between the two car bodies, resulting in a discontinuous connection between the car body and the end of the car, and there is a certain driving resistance, which affects the dynamic performance of the vehicle.

More importantly, the windshield gap outside the vehicle body increases, the vibration of the windshield accelerates, and the huge noise generated by the aerodynamic load is transmitted into the passenger compartment through the gap, affecting the comfort of passengers

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