Equipment for testing vibration performance of air spring and method of using the same for testing

Abstract

The invention relates to a vibration performance testing instrument and a testing method thereof, in particular to an equipment for testing vibration performance of an air spring and a method of using the same for testing. The invention resolves the technical problem by providing the equipment for testing vibration performance of the air spring, which has broad operating frequency and exciting force range and convenient and flexible selection of testing places and can prelabel parameters prior to an experiment and the testing method thereof. The technical scheme of the invention is as follows: the equipment for testing the vibration performance of the air spring comprises an electric vibration generator, a laser displacement sensor, an acceleration sensor and a force sensor. A signal generator and a power amplifier are connected with the electric vibration generator successively by an electric signal; the laser displacement sensor, the acceleration sensor and the force sensor transmitsignals thereof to an electric charge amplifier for signal amplification, and then such signals are stored in a computer; the electric vibration generator is arranged in a suspending way; and the signal of the electric charge amplifier firstly enters a data collection system and then enters the computer through the data collection system.

Description

technical field [0001] The invention relates to a vibration characteristic testing instrument and a testing method thereof, in particular to a device for testing the vibration characteristic of an air spring and a testing method using the device. Background technique [0002] The current material testing test bench has been industrialized, and the supporting testing system is also relatively complete. There are dozens of manufacturers and research institutes producing elastic testing machines at home and abroad. Its schematic diagram is as follows figure 1 shown. [0003] So far, the excitation methods of air spring testing and testing mainly include: mechanical vibration, electro-hydraulic vibration, and electrodynamic vibration. [0004] Electrodynamic vibration is designed according to the principle of electromagnetic induction. When the current-carrying conductor is in a constant magnetic field, it will be subjected to force, and when the conductor is passed through an...

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Problems solved by technology

[0008] In addition, the usual test equipment is generally not calibrated, and the accuracy of the equipment is directly given by the manufacturer, but the instrument cannot be unchanged. Therefore, if calibration is required, a high-precision sensor is required for the test

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