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Effects of tractor mounted mulcher blades on tractor vibration while mulching oil palm fronds


Jahun, Bala Gambo and Ahmad, Desa and Mahadi @ Othman, Muhammad Razif and Sulaiman, Shamsuddin (2018) Effects of tractor mounted mulcher blades on tractor vibration while mulching oil palm fronds. In: National Conference on Agricultural and Food Mechanization 2018 (NCAFM 2018), 17-19 Apr. 2018, Pullman Kuching, Sarawak. (pp. 43-45).


Mulching of oil palm fronds as alternative of waste disposal using the existing blade affects the operators regarding vibration. Three different blades were developed using Solid Works, fabricated and performance compared. Measurement was conducted using Sensor VM 24 vibration meter at the Universiti Putra Malaysia oil palm plantation. Four blades with different lifting angles (60°, 90°, 120°, and 150°), two tractor PTO speeds (540 and 1000 rpm) and three tractor forward speeds (1, 3, and 5 km/h) were the independent variables used. Statistical analysis based on ANOVA test of significance was in Completely Randomized Blocked Design (CRBD) and showed a significance at (P<0.05). Tukey's Studentized Range (HSD) test showed significant difference (P<0.05). The results show minimum vibration was given by the blade with 90o lifting angle. Multiple regressions were used for the relationships between independent variables to predict a model equation for vibration. Linear and quadratic regression coefficient showed a highly significant, P= 0.0001 and the coefficient of determination (R²) = 0.3766 and 0.377 respectively are weak and not fit to predict vibration.

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Additional Metadata

Item Type: Conference or Workshop Item (Other)
Divisions: Faculty of Engineering
Publisher: Penerbit MARDI
Keywords: Blade lifting angles; Tractor forward speed; Tractor PTO speed; Oil palm fronds; Vibration
Depositing User: Nabilah Mustapa
Date Deposited: 06 Mar 2019 05:25
Last Modified: 06 Mar 2019 05:25
URI: http://psasir.upm.edu.my/id/eprint/66902
Statistic Details: View Download Statistic

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