Experimental studies of ride quality of selfpropelled combine harvester

Pavel V Sirotin,Sergey V Zlenko,Aleksandr G Sapegin,H.-G Gross,Y.G Cen,H Khaled,T Abbasian Najafabadi,K Egiazarian,G Karapetyan,M Minkin,V Mladenovic,D.A Nguyen,I Kudish,I.B Sevostyanov

doi:10.1051/matecconf/201822601003

Abstract

The given work is devoted to the study of dynamic loads acting upon a combine harvester, which is one of the most vibration-loaded types of modern transport and technological machines. The results on the evaluation of dynamic loads and ride quality parameters of a self-propelled combine harvester when driving along gravel and bituminous surfaces under various operating conditions are presented based on complex experimental studies carried out with the help of tensor and vibrometry methods. The method and conditions of measurements are given. On the basis of the experimental studies, the acceleration spectrum on the main parts of the combine harvester are presented and their description is given. Using the methods of spectral analysis and statistical processing, a vibration modal analysis has been carried out during a combine harvester movement. According to the results of the analysis, the basic vibrational modes have been determined, and it has been shown that the self-propelled combine harvester movement dynamics is determined by vertical and longitudinal-angular vibrations of its core on pneumatic tires. Further scientific research directions to improve the ride quality and to decrease the dynamic loads on a considered class of self-propelled agricultural machines have been determined.

Highlights

UHVHDUFK DUHD DQG WKH GHYHORSPHQW RI PHDQV DQG V\VWHPV WR LQFUHDVH WKH ULGH TXDOLW\ RI D FRPELQH KDUYHVWHU KDV VXIILFLHQW VFLHQWLILF UHOHYDQFH DQG SUDFWLFDO VLJQLILFDQFH.
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ij )LJ >@ 7UDQVYHUVH \ ORQJLWXGLQDO [ DV ZHOO DV WUDQVYHUVHDQJXODU YLEUDWLRQV RI WKH FRUH ȕ KDYH QRW EHHQ FRQVLGHUHG LQ WKLV SDSHU VLQFH WKH SUHYLRXV VWXGLHV >@ VKRZ WKDW VXFK SDUDPHWHUV DV ] ɢ ij SULPDULO\ DIIHFW WKH ULGH TXDOLW\ RI WKH FRQVLGHUHG W\SH RI VHOI SURSHOOHG PDFKLQHV
F )LJ 7KH DFFHOHUDWLRQ VSHFWUD LQ WKH YHUWLFDO GLUHFWLRQ RQ WKH IHHGHU KRXVH D RQ WKH D[OH EHDP RI WKH GULYLQJ ZKHHOV E DQG RQ WKH D[OH EHDP RI WKH VWHHULQJ ZKHHOV F ZKHQ WKH FRPELQH KDUYHVWHU PRYHV DORQJ WKH ELWXPLQRXV VXUIDFH DW D VSHHG RI NPK ZLWKRXW DQ DGDSWHU

Summary

Introduction

UHVHDUFK DUHD DQG WKH GHYHORSPHQW RI PHDQV DQG V\VWHPV WR LQFUHDVH WKH ULGH TXDOLW\ RI D FRPELQH KDUYHVWHU KDV VXIILFLHQW VFLHQWLILF UHOHYDQFH DQG SUDFWLFDO VLJQLILFDQFH.

Results

Conclusion