DEVELOPMENT AND EVALUATION OF AN APARTUS FOR MEASURMENT AND STUDY OF TRACTION PHENOMENON UNDER CONTROLLED CONDITIONS

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SHEYKH DAVOUDI MOHAMMAD JAVAD; MINAEI SAEID; ALMASI MORTEZA; GHOBADIAN B.

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Paper Information

Journal: THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA) Year:2005 | Volume:28 | Issue:1 Page(s): 13-27

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Information Journal Paper

Title

DEVELOPMENT AND EVALUATION OF AN APARTUS FOR MEASURMENT AND STUDY OF TRACTION PHENOMENON UNDER CONTROLLED CONDITIONS

Author(s)

SHEYKH DAVOUDI MOHAMMAD JAVAD | MINAEI SAEID | ALMASI MORTEZA | GHOBADIAN B. | Issue Writer Certificate

Keywords

SOIL BINQ3

TRACTIONQ3

TRACTION EFFICIENCYQ4

RUBBER TIREQ4

CONE INDEXQ3

Abstract

Increasing TRACTION force and efficiency of farm tractors results in more crop productivity and saving of energy consumption. Optimizing these parameters requires detail study of effective condition on performance of TRACTION wheels. In this research development and evaluation of a compelet laboratory system capable of testing and measuring performance parameters of small TRACTION wheels, was envisaged. The aparatus consisted of a SOIL BIN having a dimension length, of 6, 0.3 and 0.3 meters for its lenth, width af depth respectively. The SOIL BIN transverse on a 12 meters length rail by its antifriction wheels having negligible moving resistance. Inside the bin different texture could be processed to a desired condition by using tillage and compacting implement that were fixed on stationary frame and water mister was used to control the humidity of the soil. The driving system consists of an electric motor, a three speed gear box and a TRACTION wheel jointed by suitable levers and free pivots to a stationary frame which provide aparatus movement and exerts different normal loads by using various weights. Data measuring system consisted of two strain gage load cells one located between wheel and stationary frame and measure gross TRACTION effort and the other located between SOIL BIN and adjustable braking system that measures net TRACTION or pull, two D.C.generators were used for measuring the speeds of the wheel and SOIL BIN separately. The out put singnals of the measuring transducers are electrical potential difference which is analog signal and converted to digital signal by a 8 bits and 4 channels data logger. The signals are then transferred to a computer for processing and displaying the quantity of forces, speeds and slippage. A cone penetrometer determines the CONE INDEX for every soil condition from surface to 0.15meter dept. During different TRACTION tests, other soil parameters such as texture, structure, water content and machine parameters such as diameter and width of TRACTION wheel , normal load and slippage could be measured. By obtaining these parameters and substituting them in different TRACTION models, calculated TRACTION performance quatities that are comperable to measured quantities in various conditions can he achived. Also TRACTION performance of the small or model TRACTION wheels can he studied and evaluated by changing each of the effective parameters in the tests. The aparatus showed good accurey when some TRACTION performance tests were performed.

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APA: Copy

SHEYKH DAVOUDI, MOHAMMAD JAVAD, MINAEI, SAEID, ALMASI, MORTEZA, & GHOBADIAN, B.. (2005). DEVELOPMENT AND EVALUATION OF AN APARTUS FOR MEASURMENT AND STUDY OF TRACTION PHENOMENON UNDER CONTROLLED CONDITIONS. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), 28(1), 13-27. SID. https://sid.ir/paper/24807/en

Vancouver: Copy

SHEYKH DAVOUDI MOHAMMAD JAVAD, MINAEI SAEID, ALMASI MORTEZA, GHOBADIAN B.. DEVELOPMENT AND EVALUATION OF AN APARTUS FOR MEASURMENT AND STUDY OF TRACTION PHENOMENON UNDER CONTROLLED CONDITIONS. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA)[Internet]. 2005;28(1):13-27. Available from: https://sid.ir/paper/24807/en

IEEE: Copy

MOHAMMAD JAVAD SHEYKH DAVOUDI, SAEID MINAEI, MORTEZA ALMASI, and B. GHOBADIAN, “DEVELOPMENT AND EVALUATION OF AN APARTUS FOR MEASURMENT AND STUDY OF TRACTION PHENOMENON UNDER CONTROLLED CONDITIONS,” THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), vol. 28, no. 1, pp. 13–27, 2005, [Online]. Available: https://sid.ir/paper/24807/en

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