Analysis of Rake Angle Effect to Stress Distribution on Excavator Bucket Teeth Using Finite Element Method
Excavator is mostly used for mining and construction. This heavy equipment, widely known as a backhoe, is a digging machine commonly used for dredging the mining materials, digging and leveling the soil, dredging the river, removing the road and demolition. Excavator has bucket teeth, component that frequently undergoes a change. The replacement of bucket teeth is performed due to its low usage time and many failure experiences such as wear, bend, crack and facture during the use. To prevent the occurrence of the failures, a structural analysis on bucket teeth is necessarily conducted. The analysis was conducted to find the stress distribution on bucket teeth from the rake angle effect during the excavation. The analysis was performed using finite element method by static loading and two-dimensional modeling to determine digging and resistive force in bucket teeth. Based on the analysis, it was obtained the stress distribution and maximum value of von misses occurring in the bucket teeth from the rake angle effect. The maximum stress, obtained from the analysis results, was then compared to the allowable stress of the bucket teeth material. The results showed that the materials used were in safe limits and had small potential for experiencing failure as well.
Tasevski, A. and Hedlund, C. Design of bucket teeth. Eskilstuna : Mälardalen University, 2016.
Shaikh, Bilal Pirmahamad, and Abid M. Mulla. "Analysis of bucket teeth of backhoe excavator loader and its weight optimization." International Journal of Engineering Research & Technology 4 (5) (2015): 289-295.
Deere, John. Bucket Tooth Catalogue. USA, 2002.
Chen J, Zou Z, Pang X. Digging performance characterization for hydraulic excavator considering uncertainty during digging operation. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2017, https://doi.org/10.1177/0954406217692843.
Fang ZQ, Hu GM, Gui WJ, Liu Y. Analysis of contact forces of particles with excavator bucket in digging process by using discrete element method. In Mechanics and Mechanical Engineering: Proceedings of the 2015 International Conference (MME2015) 2016 Jul 14 (pp. 30-38).
Patel, Bhaveshkumar P. and Prajapati., J. M. “Evaluation of bucket capacity, digging force calculations and static force analysis of mini hydraulic backhoe." Jr. of Machine Design 4 (2012): 59-66.
Zienkiewicz, O. C., Taylor, R. L. and Zhu, J. Z. The Finite Element Method: Its Basis and Fundamentals 6th Edition. Amsterdam, 2005.
Patel, B. P., Prajapati, J. M. and Gadhvi, B. J. “An excavation force calculation and applications: an analytical approach.” International Jounal of Enggineering Science and Technology 3 (2011): 3831-3837.
Reece, A. R. “The fundamental equation of earth-moving mechanics.” Proc Instn Mech Engrs (1964): 16-22.
Cannon, H. N. Extended Earthmoving with an Autonomous Excavator. Pittsburg: Carnegie Mellon University, 1999.
SAE International. SAE J1179: Hydraulic Excavator and Backhoe Digging Force. Warrendale: SAE, 1990.
McKyes, E. Developments in Agricultural Engineering 7 Soil Cutting and Tillage. Amsterdam: Elsevier Science Publishers, 1985.
Blouin, Stéphane, Ahmad Hemami, and Mike Lipsett. "Review of resistive force models for earthmoving processes." Journal of Aerospace Engineering 14, no. 3 (2001): 102-111, https://doi.org/10.1061/(ASCE)0893-1321(2001)14:3(102).
Golbasi, O. Investigation of Stress Distribution in a Dragline Bucket Teeth Using Finite Element Analisys. Turki : Midle East Technical University, 2011.
Pollack, H. W. Materials Science and Metallurgy 2nd Edition. Singapore : McGraw-Hill, 1988.
Callister, W. D. Materials Science and Engineering: An Introduction 7th Edition. New York: John Wiley & Sons Inc, 2007.
National Soil Survey Center NRCS. Field Book for Describing and Sampling Soils. USA: U.S. Department of Agriculture, 2012.
Sara, M. N. Site Assessment and Remediation Handbook 2nd Edition. USA: Lewis Publishers, 2003.
Burland, J. B. “On the compressibility and shear strength of natural soils.” Geotechnique 40 (1990): 329-378.
Wu, X. Z. “Modelling dependence structures of soil shear strength data with bivariate copulas and applications to geotechnical reliability analysis.” Soils and Foundations 55 (2015): 1243-1258, https://doi.org/10.1016/j.sandf.2015.09.023.
Polovinko, V. A., and A. I. Fedulov. "Geometry of the working part of an excavator tooth." Journal of Mining Science 29, no. 2 (1993): 115-121, https://doi.org/10.1007/BF00733460.
Lazić, V., A. Sedmak, R. R., Nikolić, M. Mutavdžić, S. Aleksandrović, B. Krstić, D.M. “Selection of the most appropriate welding technology for hardfacing of bucket teeth.” Materials and Technologies/Materijali in Tehnologije, 49(2015): 165–172.
Fernandez J. E., Vijande R., Tucho R., Rodriguez J., Martin A. “Materials selection to excavator teeth in mining industry.” Elsevier, Wear 250 (2001): 11, https://doi.org/10.1016/S0043-1648(01)00624-X.
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