Year 2019, Volume 29, Issue 1, Pages 24 - 33 2019-03-29

Dar kanat geometrisinin ayrık eleman metodu kullanılarak toprak arızası ve çekme kuvveti üzerindeki etkilerinin modellenmesi
Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method

Gholamhossein SHAHGHOLI [1] , Naser KANYAWI [2] , Davood KALANTARI [3]

44 167

 Buldozerler veya toprak işleme araçları gibi çoğu toprak işleme makinesinde, çalışma aleti bir çatal dişidir. Bu nedenle toprak işleme sistemleri için, bıçak üzerinde etkili olan kuvvetlerin doğru tahmin edilmesi, üretkenliklerini arttırmak için çok önemlidir. Kesme hızı ve kesme derinliği gibi bıçak geometrisi veya toprak tipi ve çalışma koşulları gibi başlangıç koşulları deneysel olarak makine verimliliği üzerinde büyük bir etkiye sahip olduğu gösterilmiştir. Deneysel çalışmalar değerli bilgiler verir, ancak pahalı olabilir ve belirli kesme hızları ve derinlikleri ile sınırlı olabilir. Sonuçlar aynı zamanda ölçüm cihazlarının doğruluğuna oldukça bağlıdır. Ancak artan hesaplama gücü ve daha sofistike modellerin geliştirilmesinde, ayrık eleman analizi (AEA), toprak bıçağı etkileşimini etkileyen faktörleri analiz etmede daha fazla umut vermektedir. Bu çalışmada, farklı eğim açıları, ileri hız, çalışma derinliği ve derinlik/ sürat oranının, ayrı bir eleman yöntemi kullanılarak dik bir çekme ve düşey kuvvet üzerindeki etkileri araştırılmıştır. Sürüş hızı arttıkça tırmık açısı, d / w oranı ve çalışma derinliği çekme kuvvetinin arttığı görülmüştür. AEA, toprak reaksiyon kuvvetlerini bir diş üzerinde öngörebilir ve simülasyon ile deney sonuçları arasında iyi bir uyum bulunmuştur. Genel olarak, bu çalışmanın sonuçlarına dayanarak, AEA toprak reaksiyon kuvvetlerini % 90'dan fazla bir doğrulukla tahmin edebilir.

In most earth moving machinery, such as bulldozers or tillage tools, the working tool is a tine. Thus, for tillage systems, accurate predicting of the forces acting on the tine is of prime importance to enhance their productivity. The initial conditions (i.e., blade geometry or soil type) and operating conditions (i.e., cutting speed and cutting depth) have been shown experimentally a great effect on machinery efficiency. Although experimental studies provide valuable information, they are expensive, time-consuming, and limited to certain cutting speeds and depths. Results obtained from experimental studies are also highly dependent on the accuracy of the measuring devices. However, with the increasing computational power and the development of more sophisticated mathematical models, numerical methods and in particular discrete element method (DEM) have shown great potential in analyzing the factors affecting soil-blade interaction. In this study, the effects of different rake angles, forward speed, working depth, and depth/width (d/w) ratio were investigated on a tine draught and vertical force using DEM modeling. Simulation results were also compared with the test results. It was found from the results that increasing travel velocity, tine rake angle, d/w ratio, and working depth increased draught and vertical force. Overall, based on the results of this study, DEM is able to predict soil reaction forces with an accuracy of more than 90%.

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Primary Language en
Subjects Engineering
Published Date 2019
Journal Section Articles
Authors

Author: Gholamhossein SHAHGHOLI (Primary Author)
Institution: University of Mohaghegh Ardabili
Country: Iran


Author: Naser KANYAWI
Institution: University of Mohaghegh Ardabili
Country: Iran


Author: Davood KALANTARI

Dates

Publication Date: March 29, 2019

Bibtex @research article { yyutbd429950, journal = {Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi}, issn = {1308-7576}, eissn = {1308-7584}, address = {Yuzuncu Yil University}, year = {2019}, volume = {29}, pages = {24 - 33}, doi = {10.29133/yyutbd.429950}, title = {Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method}, key = {cite}, author = {SHAHGHOLI, Gholamhossein and KANYAWI, Naser and KALANTARI, Davood} }
APA SHAHGHOLI, G , KANYAWI, N , KALANTARI, D . (2019). Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method. Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi, 29 (1), 24-33. DOI: 10.29133/yyutbd.429950
MLA SHAHGHOLI, G , KANYAWI, N , KALANTARI, D . "Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method". Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi 29 (2019): 24-33 <http://dergipark.org.tr/yyutbd/issue/44253/429950>
Chicago SHAHGHOLI, G , KANYAWI, N , KALANTARI, D . "Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method". Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi 29 (2019): 24-33
RIS TY - JOUR T1 - Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method AU - Gholamhossein SHAHGHOLI , Naser KANYAWI , Davood KALANTARI Y1 - 2019 PY - 2019 N1 - doi: 10.29133/yyutbd.429950 DO - 10.29133/yyutbd.429950 T2 - Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi JF - Journal JO - JOR SP - 24 EP - 33 VL - 29 IS - 1 SN - 1308-7576-1308-7584 M3 - doi: 10.29133/yyutbd.429950 UR - https://doi.org/10.29133/yyutbd.429950 Y2 - 2019 ER -
EndNote %0 Yuzuncu Yıl University Journal of Agricultural Sciences Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method %A Gholamhossein SHAHGHOLI , Naser KANYAWI , Davood KALANTARI %T Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method %D 2019 %J Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi %P 1308-7576-1308-7584 %V 29 %N 1 %R doi: 10.29133/yyutbd.429950 %U 10.29133/yyutbd.429950
ISNAD SHAHGHOLI, Gholamhossein , KANYAWI, Naser , KALANTARI, Davood . "Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method". Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi 29 / 1 (March 2019): 24-33. https://doi.org/10.29133/yyutbd.429950
AMA SHAHGHOLI G , KANYAWI N , KALANTARI D . Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method. YYU J AGR SCI. 2019; 29(1): 24-33.
Vancouver SHAHGHOLI G , KANYAWI N , KALANTARI D . Modeling the Effects of Narrow Blade Geometry on Soil Failure Draught and Vertical Forces Using Discrete Element Method. Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi. 2019; 29(1): 33-24.