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Pressure fluctuation fatigue test device for train door

A pressure pulsation and fatigue test technology, applied in the field of door fatigue test and pressure pulsation fatigue test device of train doors, can solve the problems of high cost, occupation of railway transportation resources, time-consuming and other problems, and achieve low cost, low energy consumption, and easy assembly. Effect

Pending Publication Date: 2017-09-22
BEIJING INST OF STRUCTURE & ENVIRONMENT ENG
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AI Technical Summary

Problems solved by technology

However, this method has the disadvantages of time-consuming, laborious, high cost, and poor repeatability of test data.
In addition, such an actual road test method will also occupy valuable railway transportation resources and affect the normal operation of the planned trains

Method used

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  • Pressure fluctuation fatigue test device for train door

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The invention is a pressure pulsation fatigue test device for train doors, which is used to generate pressure pulsations of positive pressure or negative pressure or zero-average positive and negative pressure on one side of the train door, and simultaneously measure the pressure pulsation value and the relationship between the door and the window. displacement and strain.

[0024] Such as figure 1 As shown, the test piece is a car door 1, and the test device of the present invention includes: a test circuit, a control assembly and a measurement assembly; wherein, the test circuit includes an installation tool 5 and a pipeline 15, and the control assembly includes a shut-off valve 7, a first electromagnetic valve 8. The first pneumatic valve 9, the second pneumatic valve 10, the second solenoid valve 11, the air source 12, the PLC controller 13 ...

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Abstract

The invention discloses a pressure fluctuation fatigue test device for a train door, which relates to the technical field of pressure fluctuation fatigue tests. The device comprises a test circuit, a control module and a measurement module, wherein in the test circuit, a mounting tool and a test piece are assembled, sealed test space is formed, and the mounting tool is connected with a pipeline; in the control module, a PLC directly controls a first solenoid valve and a second solenoid valve and further controls a first pneumatic valve and a second pneumatic valve, an air source provides power for the pneumatic valve, and according to test requirements, a fan is arranged at any end or two ends of the pipeline; and the measurement module is arranged on the mounting tool and the test piece. Simulation of multiple pressure differential environments formed by aerodynamic load in a lab can be realized, uniform distribution load can be applied to the test piece, the pressure difference and the test frequency can be adjusted according to actual conditions, and pressure fluctuation fatigue test requirements generated on parts such as a door and a window of a transportation means due to high-speed driving can be totally met.

Description

technical field [0001] The invention relates to the technical field of pressure pulsation fatigue tests, in particular to a pressure pulsation fatigue test device for train doors, especially suitable for fatigue tests on doors of high-speed rail, subways, automobiles, etc. subjected to aerodynamic loads to generate surface pressure pulsations. Background technique [0002] With the rapid development of national high-speed rail, trains are running faster and faster, and their safety and comfort requirements are getting higher and higher. Compared with low-speed trains, the aerodynamic loads generated by high-speed trains under complex working conditions such as tunnel passing, open line intersection, and tunnel intersection have a greater impact on the safety of train operation and passenger comfort, especially for trains. Doors in weak areas of the bodywork. [0003] The door is an important part of the train. It not only has the function of getting on and off the passenger...

Claims

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Application Information

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IPC IPC(8): G01M17/08
CPCG01M17/08
Inventor 夏江宁雷霆李杰张冰吴军崔修斌王丹
Owner BEIJING INST OF STRUCTURE & ENVIRONMENT ENG
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