A THEORETICAL-EXPERIMENTAL APPROACH FOR ELASTO-DAMPING PARAMETERS ESTIMATION OF CONE INERTIAL CRUSHER MOUNTING

Rosen Mitrev, Simeon Savov

DOI Number
10.22190/FUME161013006M
First page
73
Last page
83

Abstract

The present paper deals with estimation of the elasto-damping parameters of a cone inertial crusher mounting. The numerical values of these parameters are crucial for accurate reproduction of the machine vibrational behavior and dynamical model adequacy. Due to the significant difficulties arising during the purely theoretical determination of the stiffness and damping parameters of the rubber vibroisolators it is well-suited to use a theoretical-experimental approach. The developed approach is based on the theoretical determination of the mounting stiffness parameters as a function of two experimentally measured natural frequencies of the mechanical system. The crusher is represented as a six degrees of freedom system with two planes of symmetry. By using the system characteristic polynomial, the theoretical derivation of mathematical relationships for the mechanical system natural frequencies as a function of stiffness, inertial and geometrical parameters is performed. A good agreement is shown when comparing the experimental and the theoretical results for the system kinematical characteristics.


Keywords

Cone Inertial Crusher, Modal Analysis, Parameters Estimation

Full Text:

PDF

References

Blazy P., Zarogatsky L., Jdid E., 1994, Hamdadou M., Vibroinertial comminution — principles and performance, International Journal of Mineral Processing, 41(1-2), pp.33-51.

Savov S., 2014, Research of mechanical and technological parameters of cone inertial crushers type KID, Ph.D thesis, Mining and Geology University “St. Ivan Rilski”, Sofia, 221 p.

Savov S., 2016, Experimental determination of natural frequencies of cone inertial crusher (KID-300), Bulgarian journal for engineering design, issue 30, october 2016, pp.5-10.

Ljung L., 1999, System Identification: Theory for the User, Englewood Cliffs, NJ: Prentice-Hall, 672 p.

Grigorov B., Mitrev R., 2016, Dynamic behavior of a hydraulic crane operating a freely suspended payload, J Zhejiang Univ-Sci A, in press, doi: 10.1631/jzus.A1600292

Bruns J.-U., Lindner M., Popp, K., 2003, Identification of the Nonlinear Restoring Force Characteristic of a Rubber Mounting, Proc. Appl. Math. Mech., 2, pp. 270–271. doi:10.1002/pamm.200310120

Dashevskij M., Motorin V., Mironov E., Samoilenko T., 2003, Engineering design of rubber pads ageing properties: theory and experiment, Constitutive models for rubber III, Proceedings of the third European conference on constitutive models for rubber, 15-17 September 2003, London, UK.

Tachibana, E., Li, K., 1996, Temperature dependence of high damping rubber in base-isolated structures, Proceedings of the 11th World Conference on Earthquake Engineering, Acapulco, Mexico. Paper no.492. Oxford: Pergamon.

Koblar, D., Boltezar, M., 2013, Evaluation of the frequency-dependent Young's modulus and damping factor of rubber from experiment and their implementation in a finite-element analysis, Experimental Techniques, published online 11 November 2013, doi: 10.1111/ext.12066

Feng, W., Hallquist, J., 2012, On Mooney-Rivlin Constants for Elastomers, 12th International LS-DYNA Users Conference 2012, pp.1-10.

Malekjafarian A., Ashory R.M., Khatibi N.M., Latibari M.S., 2011, A new method for estimation of rigid body properties from output-only modal data, International Operational Modal Analysis Conference, IOMAC’11.

Strommen E., 2014, Structural Dynamics, Springer Series in Solid and Structural Mechanics, vol. 2, 510 p., doi: 10.1007/978-3-319-01802-7

Meirovitch L., 2001, Fundamentals of Vibrations, McGraw–Hill Higher Education, New York, 806 p.




DOI: http://dx.doi.org/10.22190/FUME161013006M

Refbacks

  • There are currently no refbacks.


ISSN: 0354-2025 (Print)

ISSN: 2335-0164 (Online)

COBISS.SR-ID 98732551

ZDB-ID: 2766459-4