Effect of the load of drive axles and high of the curtain on stress-strain properties of the tractor

Effect of the load of drive axles and high of the curtain on stress-strain properties of the tractor

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The goal of the experimental measurement was determination of relation among weight load of the tractor together, hitch height changes and drawbar characteristic.The measurement was realized on chassis dynamometer at MUAF in Brno.The first step consisted of rated speed characteristics measurement in conformity with OECD demands.

The drawbar characteristic was measured under two selected gears.Adding 980 Gut Microbiota and Metabolome Description of Antibiotic-Treated Neonates From Parturients With Intrauterine Infection kg to the nominal wight of the tractor brought increasing maximal drawbar power and drawbar force together with decreasing of slip.The highest differences were observed during the mesurement of fifth gear shifted.

The drawbar force grew up to 18.9% as well as the maximal drawbar power (15.2%).

The maximal drawbar power at ninth gear gave 62.8 kW.The hitch height was setting to 0.

54 m; 0.64 m and 0.74 m.

When the hitch height was set from 0.54 m to 0.74 m the drawbar force an power on front axle was Ethnographie d’un hôpital cambodgien lower by reason of load reduction.

As can be noticed from the final drawbar characteristics, both curves are identical up to border of maximal drawbar power.Small differences in the area of the highest slips can be ascribed to the rolling resistance.