AN ANALYSIS AND EVALUATION OF VIBRATIONS OF POWER TILLER IN THE STATIONARY CONDITIONS

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TAGHIZADEH ALISARAEI A.; TAVAKOLI HASHJIN TEYMOUR; GHOBADIAN B.

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Journal: Iranian Journal of Biosystems Engineering Year:2010 | Volume:41 | Issue:1 Page(s): 27-35

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Title

AN ANALYSIS AND EVALUATION OF VIBRATIONS OF POWER TILLER IN THE STATIONARY CONDITIONS

Author(s)

TAGHIZADEH ALISARAEI A. | TAVAKOLI HASHJIN TEYMOUR | GHOBADIAN B. | Issue Writer Certificate

Keywords

VIBRATIONQ2

TRANSMISSIBILITYQ3

ACCELERATIONQ2

TIME DOMAINQ3

FREQUENCY DOMAINQ3

Abstract

One of the most conspicuous arguments in industry as well as agriculture is the well being of the operator during work with machines, studied in the field of ergonomics. One of the machines to the hazardous and risks of which, farmers in the northern regions of Iran are exposed is the power tiller. In this work, some effects of the VIBRATIONs produced by a power tiller and imposed upon the operator were evaluated. Experiments were conducted in stationary operational conditions. Six engine speeds (1300, 1600, 1800, 2000, 2200, and 2400rpm), along with four locations of VIBRATION namely: chassis, hand grip, arm, and chest were selected. It was observed that with increase in engine speed, rms (root mean square) of ACCELERATION in the four locations, increased in three directions. Also the dominant frequency through all locations and directions was found to be equal to the number of piston strokes or revolutions per seconds. Comparing ACCELERATION values in the three directions demonstrated that, in all locations, the values are maximized in the vertical directions. Comparing rms ACCELERATION values (three directions) and VIBRATION total value, ahv, in different locations (from chassis to chest) showed that these values reached their maximum levels on the hand grip. The values decrease gradually in transition path from hand grip to the chest due to damping off in operator's body with all the transmitted VIBRATIONs being damped from head to the feet. In other words, they are absorbed within the operator's body. It was also observed that most of the VIBRATIONs are transmitted to the operator's hand through hand grip, so an operator's wrist bears the most operational severity. The TRANSMISSIBILITY of VIBRATION decreased gradually from wrist to the chest.

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APA: Copy

TAGHIZADEH ALISARAEI, A., TAVAKOLI HASHJIN, TEYMOUR, & GHOBADIAN, B.. (2010). AN ANALYSIS AND EVALUATION OF VIBRATIONS OF POWER TILLER IN THE STATIONARY CONDITIONS. IRANIAN JOURNAL OF BIOSYSTEMS ENGINEERING (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 41(1), 27-35. SID. https://sid.ir/paper/144182/en

Vancouver: Copy

TAGHIZADEH ALISARAEI A., TAVAKOLI HASHJIN TEYMOUR, GHOBADIAN B.. AN ANALYSIS AND EVALUATION OF VIBRATIONS OF POWER TILLER IN THE STATIONARY CONDITIONS. IRANIAN JOURNAL OF BIOSYSTEMS ENGINEERING (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2010;41(1):27-35. Available from: https://sid.ir/paper/144182/en

IEEE: Copy

A. TAGHIZADEH ALISARAEI, TEYMOUR TAVAKOLI HASHJIN, and B. GHOBADIAN, “AN ANALYSIS AND EVALUATION OF VIBRATIONS OF POWER TILLER IN THE STATIONARY CONDITIONS,” IRANIAN JOURNAL OF BIOSYSTEMS ENGINEERING (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 41, no. 1, pp. 27–35, 2010, [Online]. Available: https://sid.ir/paper/144182/en

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