Effect of lug angle and forward speed on the torque and pull characteristics of the tilling wheel of float-assisted tiller.

Date

5-2013

Degree

Bachelor of Science in Agricultural Engineering

Major Course

Major in Agricultural Power and Machinery Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Fajardo, Arthur L.

Committee Member

Fernando O. Paras Jr.

Abstract

The design existing tilling wheels of float-assisted tillers was based mainly on farmer's experiences in the field and through trial and error. There is therefore a need to make a better approach on the design of the tilling wheel. The study aimed to determine the effect of varying forward speed (1kph, 1.5kph, 2kph) and lug angle (0º, 7.25º, 13º) to the tilling wheel's performance in terms of torque and pull characteristics. The study was carried out using a soil bin made to adapt to lowland conditions. Load cells, a torque transducer, a speed sensor, and a data acquisition unit were used to gather the v necessary information during each run. The maximum axle power was observed to be 1009.72W at 13º , 1.5kph maximum drawbar power was 105.16W at 0º, 2kph maximum tractive efficiency was 33.22% at 13º, 2kph. It was found out that only forward speed(1.5kph and 2kph only) had a significant effect on both axle and drawbar power. As expected, the number of pass had an effect on the puddling index. It was found out that mean puddling index between passes has significant differences. Varying trends were observed regarding the computed values for specific energy requirement, performance index, and tractive efficiency.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

LG 993.5 2013 A2 C38

Document Type

Thesis

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