Estimation of Load acting on a Crane Hook by Inverse Finite Element Method

Ravinarayan R Rao, Lingaraj K Ritti, Pavan Kumar
Volume 2: Issue 1, March 2015, pp 29-31


Author's Information
Ravinarayan R Rao1 
Corresponding Author
1Assistant Professor, Department of Mechanical Engineering, SMVITM, Bantakal-574115, Karnataka
ravinarayan.rrao@gmail.com

Lingaraj K Ritti2, Pavan Kumar3
2Assistant Professor, Department of Mechanical Engineering, SMVITM, Bantakal-574115, Karnataka


Reserch Article -- Peer Reviewed
Published online – 30 March 2015

Open Access article under Creative Commons License

Cite this article – Ravinarayan R Rao, Lingaraj K Ritti, Pavan Kumar, “Estimation of Load acting on a Crane Hook by Inverse Finite Element Method”, International Journal of Analytical, Experimental and Finite Element Analysis, RAME Publishers, vol. 2, issue 1, pp. 29-31, March 2015.


Abstract:-
Machines and structures are designed and developed for carrying out certain tasks. Further improvement in quality and performance of the product is possible with design refinement. Finite Element analysis is a technique used for obtaining the stress distribution due to loads applied on the member. The forward finite element analysis is based on some estimated loads. However, the loads actually acting on the machines and structures are unknown. Analysis based on estimated or predicted load has only limited application. The inverse finite element method is a hybrid, experimental and numerical technique for the processing of measurement data taken on existing members who will help us in determining the operating loads. In this paper, inverse finite element technique is employed for estimating the load acting on a mechanical member. A fundamental experimental work has been carried out on crane hook. A crane hook having trapezoidal cross-sectional area is used for analysis. The forward FE analysis is carried out in Ansys. The nodal strain at required positions is recorded. The strain measurements are used in conjunction with the results of finite element analysis to predict the applied load. The magnitude of the load estimated by this method is within 2% of the actual applied load. This demonstrates the advantages of the inverse FEM method for predicting the load.
Index Terms:-
Inverse Finite Elemnt, Crane Hook, Strain Gauge
REFERENCES
[1] “The inverse identification problem and its technical application.” Tadeusz Uhl Arch Appl Mech, Feb 2006

[2] “Impact Force identification from wave propagation responses.” M.T. Martin and J.F .Doyle: School of Aeronautics and Astronautics. Purdue University. U.S.A. Int. Journal for Impact Engg. Vol 18, No:1, May 1994.

[3] “Bridge weigh-in-motion system development using static truck/dynamic bridge models.” Sarah. K. Leming and Harold. L. Stalford. Sandia National Laboratories, University of Oklahoma. American Controls Conference, 2002. May 8-10, 2002.

[4] “A Wavelet De convolution method for Impact force identification.” J.F .Doyle. Professor. School of Aeronautics and Astronautics. Purdue University. U.S.A Experimental Mechanics. Vol 37, No:4,Dec 1997.

[5] “Inverse finite element methods for force estimation and model recalibration” Philippe Maincon. Member, Safran Engineering Algorithms. 2006

[6] .“An Interpretive method for moving force Identification.” T.H.T.Chan., S.S.Law.and T.H.Yung. Dept of civil and structural engineering. The Hong Kong Polytechnic University and X.R.Yuan. Dept of Communication engineering. Shijiazhuang Railway Institute .Republic of China. Journal of sound and Vibration (1999) 219(3).503-524.

[7] .“Finite element method v/s classical methods” Dr.H.S.Govinda Rao. New Age International Private Ltd, Publishers. First Edition-2007.

[8] .“Text book of Finite Element Analysis”. P. Seshu. Associate Professor Dept of mechanical Engineering. IIT. Bombay. Prentice-Hall of India Private Limited. New Delhi. First Edition-2003.

[9] “Engineering Mathematics”. Part IV. Dr.D.S.Chandrashekaraiah. Professor& Chairman (Rtd), Dept of Mathematics. UVCE. Bangalore. Prism Book Pvt Ltd, Bangalore. Third Edition-2004. [10] “Computational Inverse Techniques in Non-Destructive Evaluation”. G.R.Liu. and X.Han. CRC Press, London. 2003.


To view full paper, Download here


To View Full Paper

Publishing with