Fatigue test device and fatigue test method of cylinders for vehicles

Abstract

The invention relates to a fatigue test device and a fatigue test method of cylinders for vehicles, and belongs to the field of safe use of cylinders for vehicles. The method provided by the inventionresearches a fatigue test of the cylinders for vehicles under internal gas pressure and external clamping band constraining force, verifies the capability of the cylinders for bearing fatigue loads in using processes, and deduces and calculates the constraining force of cylinder clamping bands according to vehicle motion parameters. The fatigue test device is designed according to the above testtarget; the device can enable the cylinders to complete the fatigue test under the combined action of the internal gas pressure and the external clamping band constraining force, and can adjust the size and position of the clamping band constraining force; and the device can adjust cylinder clamping bands according to the cylinders of different types, can be used as a fatigue test table of the cylinders for vehicles, and can also be mounted on a vehicle to be used as a bracket for fixing the cylinder.

Description

technical field [0001] The invention relates to the technical field of safe use of gas cylinders for vehicles, and particularly emphasizes a fatigue test method for the gas cylinders under the joint action of the internal pressure of the gas cylinder and the binding force of the gas cylinder hoop. According to the requirements of the test method, a fatigue test device for the gas cylinder is designed. Background technique [0002] During the use of the gas cylinder, the F bracket is fixed on the car through the binding force of the gas cylinder bracket to the gas cylinder. The size of the F bracket must be able to withstand the centrifugal force generated by the car during acceleration, braking and deceleration, turning, and even the inertial force during the collision process. role, which requires the F bracket to be large enough. When the F bracket is large enough, the force on the gas cylinder will cause external pressure deformation of the gas cylinder, and the combined ...

AI Technical Summary

Problems solved by technology

[0003] At present, the fatigue test of compressed natural gas cylinders for vehicles is only carried out under the action of the internal pressure of the cylinder, without considering the effe

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