Kinerja Traksi Model Roda Trek Bersirip Pada Tanah Lumpur di Bak Tanah

Abstract

Traktor tangan roda bersirip mengalami kesulitan saat beroperasi di sawah berlumpur dalam. Untuk mengatasi masalah ini, roda perlu diganti dengan trek yang memiliki bidang kontak jauh lebih besar. Untuk keperluan desain, diperlukan data karakteristik kinerja traksi trek pada tanah berlumpur yang dapat diperoleh dengan menguji model trek di bak tanah. Penelitian ini bertujuan menganalisis kinerja traksi model trek bersirip pada tanah lumpur. Model trek dengan panjang 60 cm dan lebar 20 cm diuji di bak tanah yang berisi tanah berlumpur sedalam 30 cm. Pengujian dilakukan terhadap variasi beban vertikal 9.5, 12.5, 15.5, 18.5, dan 22.7 kg; beban horizontal 1, 2, 3, dan 4 kg; jarak antarsirip 12.70, 19.05, dan 25.40 cm; dan tinggi sirip 5, 10, dan 15 cm. Di setiap percobaan, parameter kinerja traksi akan diukur. Selama pengujian, dilakukan pengukuran terhadap ketenggelaman trek, slip trek, dan efisiensi traksi. Hasil pengujian menunjukkan bahwa beban tarik dan beban vertikal memiliki pengaruh yang dominan terhadap ketenggelaman trek, slip trek, dan efisiensi traksi. Desain trek optimum saat trek menggunakan tinggi sirip 10 cm dan jarak antarsirip 19.05 cm dengan ketenggelaman trek 7.32 cm, slip trek 14.43% dan efisiensi traksi 68.46%. Pendugaan memiliki nilai kesalahan terendah 13.992% atau kebenaran 86.008% untuk ketenggelam trek.

Hand tractors with lugged wheels have difficulty operating in the deep mud rice fields. To solve this problem, the wheels need to be replaced with tracks that have a much larger contact area. For design purposes, data on traction performance characteristics of the track on muddy soil are required, which can be obtained by testing the track model on a soil bin. The objective of this research is to analyze the traction performance of the lugged track model on mud soil. A track model with a length of 60 cm and a width of 20 cm will be tested in a soil bin filled with muddy soil with a depth of 30 cm. The test will be carried out on variations in vertical loads of 9.5, 12.5, 15.5, 18.5, and 22.7 kg; horizontal loads of 1, 2, 3, and 4 kg; distance between of lugs of 12.70, 19.05, and 25.40 cm; and height of lugs of 5, 10, and 15 cm. In each experiment, the traction performance parameters will be measured. During the test, track sinkage, track slip, and tractive efficiency were measured. The test results show that the pull force and vertical force have a dominant effect on track sinkage, track slip, and tractive efficiency. Optimum track design when the track wheel uses a lug height of 10 cm and a distance between lugs of 19.05 cm with a track sinkage of 7.32 cm, track slip of 14%, and tractive efficiency of 68.46%. Estimation has the lowest error value of 13.992% or accuracy value of 86.008% for track sinkage.