Bahçe Traktörlerinde Kullanılan Muharrik Lastiklerin Bazı Özelliklerinin Çeki Performansına Etkileri

Yıllardır, toprak-tekerlek etkileşimi sorunlarını çözmek için traktör lastiklerinin çeki performansı üzerine birçok çalışma yürütülmüştür. Bu çalışmanın amacı, bahçe traktörlerinde kullanılan üç farklı profil yüksekliğine sahip radyal ve çapraz katlı muharrik lastiklerin çeki performansına, aks yükünün ve lastik iç basıncının etkilerini deneysel olarak belirlemektir.Denemeler anız tarla koşullarında yürütülmüştür. Belirtilen şartlar altında, yeterli performans verileri oluşturabilmek için, yeni bir tek tekerlek deney düzeneği tasarlanmış ve imal edilmiştir. Çeki kuvvetine bağlı olarak; patinaj değerleri % 3.3 ile % 34.1, net çeki oranı değerleri 0.24 ile 0.93 ve çeki verimliliği değerleri 0.27 ile 0.78 arasında değişmiştir. Yapılan varyans analizi ve LSD testi sonuçları; lastik tipi, profil yüksekliği, dinamik aks yükü ve lastik iç basıncının, çeki verimliliği üzerindeki etkisinin önemli olduğu göstermiştir P

Anahtar Kelimeler:

Çeki performansı, Çeki verimi, Dinamik yük, İç basınç, Lastik, Profil yüksekliği

Effects of Some Properties of Drive Tires Used in Horticultural Tractors on Tractive Performance

Many studies on tractive performance of tractor tires have been carried out to solve soil-wheel interaction problems in the last decades. The purpose of this study is to experimentally determine effects on tractive performance of radial and bias-ply drive tires at three different tire lug heights, axle loads and inflation pressures. The experiments were carried out in stubble field conditions. To obtain sufficient performance data, a new single wheel tester was designed and manufactured. Travel reduction, net traction ratio and tractive efficiency varied from 3.3% to 34.1%, 0.24 to 0.93 and from 0.27 to 0.78 respectively depending on drawbar pull. The effects of tire type, lug height, dynamic axle load and inflation pressure on tractive efficiency were found significant P

Keywords:

Dynamic load, Inflation pressure, Lug height, Tire, Tractive efficiency, Tractive performance,

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Al-Hamed S A, Grisso R D, Zoz F M & Von Bargen K (1994). Tractor performance spreadsheet for radial tires. Computers and Electronics in Agriculture 10: 45-62
Bashford L L & Kocher M F (1999). Wide tires, narrow tires. International OFF-Highway & Powerplant Congress, 13-15 September, Indiana, pp. 1-7
Bashford L L, Al-Hamed S & Jenane C (1993). Effect of tires size and inflation pressure on tractive performance. Applied Engineering in Agriculture 9(4): 343-348
Burt E C, Reaves C A, Bailey A C & Pickering W D (1980). A machine for testing tractor tires in soil bins. Transactions of the ASAE 23(3): 546-552
Çarman K (1997). Effect of different tillage systems on soil properties and wheat yield in middle Anatolia. Soil & Tillage Research 40(3-4): 201-207
Çarman K & Aydın C (2002). Load and velocity effects on tire. In: Proceedings of the International Conference on Agricultural Engineering, 1-3 July, Budapest, Hungary, pp. 29-30
Ekinci Ş (2011). Effect to traction performance of structural and working characteristics of some drive tires using in horticulture tractors. PhD Thesis, Selcuk University (Unpublished), Konya
Elwaleed A K, Yahya A, Zohadie M, Ahmad D & Kheiralla A F (2006). Effect of inflation pressure on motion resistance ratio of a high-lug agricultural tire. Journal of Terramechanics 43(2): 69-84
Ferhadbegović B, Brinkmann C & Kutzbach H D (2005). Dynamic longitudinal model for agricultural tires. In: Proceedings of the 15th International Conference of the ISTVS, 25-29 September, Hayama, Japan, pp. 1-13
Jun H, Way T R, Lofgren B, Landstrom M, Bailey A C, Burt E C & Mcdonald T P (2004). Dynamic load and inflation pressure effects on contact pressures of a forestry forwarder tire. Journal of Terramechanics 41(4): 209-222
Kawase Y, Nakashima H & Oida A (2006). An indoor traction measurement system for agricultural tires. Journal of Terramechanics 43(3): 317-327
Lee D R & Kim K U (1997). Effect of inflation pressure on tractive performance of bias-ply tires. Journal of Terramechanics 34(3): 187-208
McDonald T, Way T R, Seixas F, Lofgren B & Landstrom M (1996). Load and inflation pressure effects on soil compaction of forwarder tires. In: Proceedings of the Joint Conference Canadian Woodlands Forum Canadian Pulp and Paper Association and International Union of Forest Research Organizations, September, Quebec City, Quebec, Canada, pp. 67-70
Monroe G E & Burt E C (1989). Wide frame tractive vehicle for controlled-traffic research. Applied Engineering in Agriculture 5(1): 40-43
Nakashima H, Fujii H, Oida A, Momozu M, Kawase Y, Kanamori H, Aoki S & Yokoyama T (2007). Parametric analysis of lugged wheel performance for a lunar microrover by means of DEM. Journal of Terramechanics 44(2): 153-162
Okello J A (1991). A review of soil strength measurement techniques for prediction of terrain vehicle performance. Journal of Agricultural Engineering Research 50: 129-155
Plackett C W (1984). The ground pressure of some agricultural tyres at low load and with zero sinkage. Journal of Agricultural Engineering Research 29(2): 159-166
Pope R G (1971). The effect of wheel speed on rolling resistance. Journal of Terramechanics 8(1): 51-58
Raheman H & Singh R (2003). Steering forces on undriven tractor wheel. Journal of Terramechanics 40(3): 161-178
Schmulevich I, Ronai D & Wolf D (1996). A new field single wheel tester. Journal of Terramechanics 33(3): 133-141
Smerda T & Cupera J (2010). Tire inflation and its influence on drawbar characteristics and performance-energetic indicators of a tractor set. Journal of Terramechanics 47(6): 395-400
Sümer S K & Sabancı A (2005). Effects of different tire configurations on tractor performance. Turkish Journal of Agriculture and Forestry 29: 461-468
Tiwari V K, Pandey K P & Sharma A K (2009). Development of a tire traction testing facility. Journal of Terramechanics 46(6): 293-298
Turner R J (1995). Comparison of two and four track machines to rubber tire tractors in prairie soil conditions. In: Proceedings of the SAE International Off-Highway & Powerplant Congress & Exposition, 11-13 September, Milwaukee, Wisconsin, USA, Paper no: 952097
Upadhyaya S K & Wulfsohn D (1989). An overview of traction research at University of California. California Agriculture 43(2): 15-17
Upadhyaya S K, Wulfsohn D & Glancey J L (1986). Development of a unique, mobile, single wheel traction testing machine. Transactions of the ASAE 29(5): 1243-1246
Way T R (2009). Three single wheel machines for traction and soil compaction research. CIGR Ejournal 11: 1-24
Yahya A, Zohadie M, Ahmad D, Elwaleed A K & Kheiralla A F (2007). UPM indoor tyre traction testing facility. Journal of Terramechanics 44(4): 293-301