Scientia Silvae Sinicae ›› 1998, Vol. 34 ›› Issue (4): 104-108.
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Ping Wang,Lanhua Lin
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Abstract:
J-50 tractor is the machine widely used in wood production of forest zone. But, the operator's physical and psychological endurance and his working efficiency are much influenced by severe vibration of the machine, and the machinery service life is much influenced as well. Firstly this paper aims at the researching on the relative theories and experiments in vibration and evaluation of riding comfort for J-50 tractor in recent years. Then, some proposals are put forward concerning the further studies on vibration and evaluation of riding comfort for J-50 tractor:(1) study on vibration for the tractor can simplify the mechanics model of four freedoms system; (2)electronic computer can be used in the study on vibration damping for the tractor, mode parameters of whole tractor can be distingushed; (3)study on the main cause of vibration of the tractor engine, and take vibration damping measures to it, parameter of damper are chosen to make use of optimization design; (4) vibration damping measures can be made for drive room and seat to improve the work environmental suitable to forest region. Through some sorts of ways above, vibration of the tractor will be reduced greatly.
Key words: Tractor, Vibration, Riding comfort, Mode analysis
Ping Wang,Lanhua Lin. A SURVEY OF STUDY ON VIBRATION AND EVALUATION OF RIDING COMFORT FOR J-50 TRACTOR[J]. Scientia Silvae Sinicae, 1998, 34(4): 104-108.
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Fig.1
A simplily mechanical model of the caterpillar tractor"
Table 1
The value of vibration for J-50 tractor"
Fig.2
Auto power pectrum of vertical vibration for the midpoint of engine top"
Fig.3
Auto power pectrum of vetical vibration the midpoint of chair"
Fig.4
Fach other power pectrum of vetical vibration for the chair and engine top"
Fig.5
Vetical vibration of the chair as compared with ISO2631 cure"