Evaluation of the Effect of Rake Angle on the Performance of a Modified Narrow Blade

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Souri Damirchi Sofla B.; Karparvarfard S. H.; Ranjbar Karim Abadi A.; Azimi Nejadian H.; Moazni Kalat A.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF AGRICULTURAL MACHINERY Year:2021 | Volume: | Issue: Page(s): 187-197

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

430

Download:

Cites:

Information Journal Paper

Title

Evaluation of the Effect of Rake Angle on the Performance of a Modified Narrow Blade

Author(s)

Keywords

DraftQ1

Optimum blade rake angleQ1

Optimum forward speedQ1

Optimum tillage depthQ1

Soil disturbance areaQ1

Abstract

Introduction: Tillage is one of the most important field operations to improve soil structure and physical conditions and provide the proper plant site. Conservation tillage is one of the methods of tillage that reduces tillage costs. The blade is one of the most important consumed components of tillage tools in the conservation tillage, which is very important for how it is adjusted and its effect on the quality of tillage and energy required of tillage tools. According to the research conducted on the importance of optimizing tillage implements, the aim of this study was oriented to determine the optimum rake angle of a narrow-modified winged and non-winged blade in the field soil. Materials and Methods: The tests were conducted in the 22nd part of farms in Agriculture School (Bajgah zone) of Shiraz University. Three levels of blade rake angles (20, 25, and 30 degrees), two levels of tillage depth (15 and 20 cm), and two levels of forward speed (2 and 3 km h-1) were the treatments of this study. Draft, fuel consumption, slippage, Soil disturbance area, soil upheaving area, and specific Draft were the measured parameters and they were measured for each combination of the treatments. The RNAM test code was then used to measure the Draft force. In order to measure fuel consumption, two flow meters were used in the round way as a closed-loop. The encoder and the fifth wheel were also employed to measure the slippage. The profilometer and laser meter were applied to measure the soil upheaving and disturbance areas. The split-split plot on randomized complete block design was used to do the field experiments in three replication and the data analysis was performed by SAS software (9. 4 edition). Multivariate linear regression was used to determine the optimum values of the mentioned parameters. For this purpose, the lowest value of Draft, fuel consumption, specific Draft, tractor driver wheel slip, and the highest soil disturbance and upheaving areas was considered. Result and Discusion: The results showed that the magnitude of Draft increased with rake angle, therefore, the minimum Draft was obtained in the rake angle of 20° . As the blade rake angle increased, the amount of Soil disturbance area was increased and the maximum soil disturbance was obtained in the rake angle of 30° . The mean slip values of the tractor driver wheels when using non-winged blade were not significant for three levels of blade rake angles and it was significant for two velocity levels. With increasing in rake angle from 20 to 25° , the mean values of specific Draft were increased, but with changeing the rake angle from 25 to 30° , there was not significant difference between specific Draft values. The difference between the magnitude of tractor driver wheels slip for three levels of rake angle was not significant. Increasing the rake angle had a significant effect on tractor fuel consomption, such that it increased by increasing the rake angle values. Conclusions: The optimum rake angle for the non-winged blade mode was 20° with R2 of 0. 73 and for the winged blade mode was 30° with R2 of 0. 90. The optimum depth for the non-winged blade was 19. 98 cm with R2 of 0. 99 and for the winged blade was 20 cm with R2 of 0. 97. Also, the Optimum forward speed values for the non-winged blade was 2. 21 km h-1 with R2 of 0. 43 and for the winged blade was 2. 03 km h-1 with R2 of 0. 84.

Cites

No record.

References

No record.

Cite

APA: Copy

Souri Damirchi Sofla, B., Karparvarfard, S. H., Ranjbar Karim Abadi, A., Azimi Nejadian, H., & Moazni Kalat, A.. (2022). Evaluation of the Effect of Rake Angle on the Performance of a Modified Narrow Blade. JOURNAL OF AGRICULTURAL MACHINERY, 11(2 (22) ), 187-197. SID. https://sid.ir/paper/400742/en

Vancouver: Copy

Souri Damirchi Sofla B., Karparvarfard S. H., Ranjbar Karim Abadi A., Azimi Nejadian H., Moazni Kalat A.. Evaluation of the Effect of Rake Angle on the Performance of a Modified Narrow Blade. JOURNAL OF AGRICULTURAL MACHINERY[Internet]. 2022;11(2 (22) ):187-197. Available from: https://sid.ir/paper/400742/en

IEEE: Copy

B. Souri Damirchi Sofla, S. H. Karparvarfard, A. Ranjbar Karim Abadi, H. Azimi Nejadian, and A. Moazni Kalat, “Evaluation of the Effect of Rake Angle on the Performance of a Modified Narrow Blade,” JOURNAL OF AGRICULTURAL MACHINERY, vol. 11, no. 2 (22) , pp. 187–197, 2022, [Online]. Available: https://sid.ir/paper/400742/en

Related Journal Papers