Transactions of Materials and Heat Treatment

Title：Test method and data processing for load spectrum of excavator bucket rod

Authors： Du Minjie Huang Xue Li Jun Wang Yuxin Liu Yaqun

Unit： China Academy of Machinery Science & Technology

KeyWords： excavator bucket rod load spectrum experiments test time domain analysis frequency domain analysis

ClassificationCode：TU621

year,vol(issue):pagenumber：2017,42(8):107-114

Abstract：

To compile the load spectrum of hydraulic excavator bucket rod, the load spectrum test of hydraulic excavator bucket rod was proposed, and a kind of hydraulic excavator was tested. Then, the time history curve of cylinder pressure and cylinder lengthen and shorten in the typical working condition and ultimate working condition of the hydraulic excavator were collected. For the experimental data in digging rock conditions, the data were analyzed in time domain and frequency domain by Ncode, and the data were processed by removing trends and filtering. Furthermore, the force analysis of excavator working device was carried out, and the equations of equilibrium of force series were established. The time history curves of each hinge point force of bucket rod were obtained by the MATLAB. The hinge point force of bucket rod was periodic, and the loads of different working sections were different. Therefore, the stationary and ergodicity tests were carried out by taking the working section as a unit. Thus, the load spectrum compilation and indoor simulation experiment were prepared through the comparison and analysis of the data processing results.

Funds：

国家科技支撑计划（2015BAF07B00）

杜敏杰（1991-），男，硕士研究生黄雪（1963-），男，硕士，研究员

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