Performance parameter test system of silicon oil damper for vehicle

Abstract

The invention discloses a performance parameter test system of a silicon oil damper for a vehicle. The performance parameter test system comprises a frequency converter, a variable-frequency motor, an elastic coupling, a torsional oscillation exciting device, a coupling, a first measuring fluted disc, an adjustable inertia flywheel, a main shaft, a second measuring fluted disc and a damper, wherein the torsional oscillation exciting device is connected with a hydraulic pump station; a first magnetoelectric sensor is arranged above the first measuring fluted disc; a second magnetoelectric sensor is arranged above the second measuring fluted disc; the first and the second magnetoelectric sensors are connected with an NI-PXI6250 acquisition card respectively; and the NI-PXI6250 acquisition cards are connected with a computer. Due to the adoption of the performance parameter test system, engines of different cylinder numbers can be simulated, the inertia magnitude of an inertia disk can be adjusted, and the rotating speed can be adjusted in a large range; the test system can be used for continually measuring the instantaneous speed varying quickly and has high distinguishing capability on micro variation of the instantaneous speed and high responding speed; and due to the adoption of the test system, the cost of real vehicle test is saved, the risks of the real vehicle test are reduced, the function of efficiently measuring the internal performance of the damper at low cost is realized.

Description

technical field [0001] The present invention relates to a performance parameter testing system of a silicon oil shock absorber for vehicles, in particular to a torsional vibration excitation device driven by a variable frequency motor and a hydraulic pump station to simulate real engine vibration conditions, and to obtain data by using a virtual instrument to test hand breaks, and to use a computer A test system for the performance parameters of torsional vibration dampers used in vehicles for auxiliary control analysis. Background technique [0002] Torsional vibration is a special vibration form of rotating machinery shafting. It is essentially due to the fact that the shafting is not an absolute rigid body and has elasticity. Therefore, during the rotation process at an average speed, various elastic components will be generated due to various reasons. The ups and downs of instantaneous speeds of different sizes and different phases form a back and forth twist along the d...

AI Technical Summary

Problems solved by technology

At present, most shock absorber factories in China have strong production capacity, but there is no sufficient research on the performance of the shock absorber. The performance parameters of the shock absorber cannot be obtained in the simulation calculation analysis of the main engine factory, and the calculation accuracy is not high, resulting in the shock absorber. The matching of the vibrator and the engine requires a large number of installation tests, which not only wastes a lot of manpower, material and financial resources, but also easily leads to accidents

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