Method and system for evaluating vibration comfort level of excavator

Abstract

The embodiment of the invention discloses a method for evaluating the vibration comfort level of an excavator. The method includes the steps of collecting acceleration signals corresponding to vibration generated by the excavator when the excavator is in the vibration test working condition, receiving the acceleration signals, conducting human body vibration comfort level evaluation with a one-third octave spectrum evaluating method, and conducting damper performance evaluation with a vibration transmissibility evaluating method or peak value vibration isolation rate evaluating method. The embodiment of the invention further discloses a system for evaluating the vibration comfort level of the excavator. By means of the mode, scientific evaluation on the human body vibration comfort level and the damper performance can be systematically carried out when the vibration is generated by the excavator, and the basis can be provided for weak links of improving the damper performance of the excavator.

Description

technical field [0001] The invention relates to the field of heavy machinery, in particular to an excavator vibration comfort evaluation method and system. Background technique [0002] An excavator is an earth-moving machine that uses a bucket to excavate materials above or below the bearing surface, and loads them into transport vehicles or unloads them to the stockyard. The excavator will generate vibration during its walking or operation, so that the operator of the excavator located in the cab of the excavator will be affected by the vibration. [0003] In the long-term research and development, the inventor of the present application found that in the prior art, the vibration produced by the excavator is generally tested according to the four postures formulated by the national standard. The vibration generated under working conditions is tested, and this method does not carry out specific analysis and evaluation of the generated vibration, and thus cannot systematica...

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Problems solved by technology

[0003] In the long-term research and development, the inventor of the present application found that in the prior art, the vibration produced by the excavator is generally tested according to the four postures formulated by the national standard. The vibration generated under working conditions is tested, and this method does not carry out specific analysis and evaluation of the generated vibration, and thus cannot systematically evaluate the vibration comfort of the human body and the performance of the shock absorber when the excavator generates vibration

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