Intensity Analysis and Structural Optimization on Multi-Shank Dozer Ripper : Visualization of Stress, Strain and Deformation through FEA
Keywords:Ripper Tip, Shanks, FEA, HARDOX-400, SAILMA-450HI.
Tooth (ripper tip) and shank both are the important part of the ripper which is under huge stress and subject to deformation during operation. In order to improve force condition and to extend its service life, a crawler bulldozer ripper is studied. This paper presents the calculation of the stress, strain developed, and the deformation produced in dozer multi-shank ripper assembled with shank, tooth (also called as tip) and ripper frame. The Finite Element Analysis (FEA) approach was used to determine the stress, strain and deformation. A theoretical model of dozer multi-shank ripper (individual parts like tip, shank, frame) all were created in CATIA with standard dimensions and were assembled further to relate the geometry with practical models and the design was simulated in ANSYS 14 workbench. The properties of the materials used here for shank and tip are as per American Society of Testing and Materials ASTM A897M-90 standards. The materials which are to be tested here on ripper tip and shank are HARDOX-400 and SAILMA-450HI. The magnitude and position of pressure and force applied are described under further sections in detail. The calculation of strain on both the parts with different material is based on maximum distortion theory also equivalent von-misses stress and overall displacements are calculated. Subsequent to findings of the stress and strain suitable modifications and alteration in design and material used are recommended by this study for this particular application.
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Intensity Analysis and Structural Optimization on the Rack of the Ripper, paper by Keli Zhao, Yawei Zhao, Zhen Shi, Wen Li Ye, Chuabin Zheng in International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE-2013) ISBN: 978-1-60595-128-7.
Caterpillar Handbook of Ripping 12th Edition, Ripping Equipment Selection, 13.
BEML’s BD155, CATERPILLAR’s D8T and KOMATSU’s D155 catalogue.
Visualization of Strain influence on cutting edge of different Austempered Ductile Iron (ADI) products: FEA in Dozer Blade with ANSYS R 15.0, paper by Dalgobind Mahto and N E Mastorakis from Jaipur Institute of Engineering & Technology, Jaipur, India and Technical University of Sofia, Bulgaria respectively in Conference on Advances in Information Science and Computer Engineering.
Data Sheet 151en Hardox 400 2014-06-03.
Conquest Steel and Alloys, SAILMA Steel Plates, Grades and Sheets, SAILMA 450HI.
Chapter- Structural Steel: Types, Properties and Products.
Bulldozer BD155 Shop Manual, Work Equipment, Maintenance Standard, 54-1.
United States Patent, Oct.4, 1983 “Pivotally Mounted Ripping Teeth Assembly on Dozer Blade".
“Replacement Wear Parts for Caterpillar Machinery”, Replacement Ripper Parts for Dozers & Loaders, 13-19
Identification of the Forces on a Bulldozer Ripper with a Neural Network Methodology by Miguel Curinha Samarra and Luis Manuel Roseiro, Department of Mechanical Engineering Coimbra Institute of Engineering – Polytechnic Institute of Coimbra Rua Pedro Nunes – Quinta da Nora 3030 – 199 Coimbra – Portugal.
Transient Vibration Analysis of Impact Ripper by Gening XU and Meng HE, Jian-feng WU, College of Machinery Engineering, Taiyuan University of Science & Technology, Taiyuan,030024, P.R. China.