STUDY ON TVD PARAMETERS SENSITIVITY OF A CRANKSHAFT USING MULTIPLE SCALE AND STATE SPACE METHOD CONSIDERING QUADRATIC AND CUBIC NON-LINEARITIES

Authors

  • ROOHOLLAH TALEBITOOTI SCHOOL OF MECHANICAL ENGINEERING IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
  • MEHDI MOROVATI SCHOOL OF AUTOMOTIVE ENGINEERING, IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Keywords:

CRANKSHAFT, NON-LINEAR VIBRATIONS, TORSIONAL VIBRATION DAMPER (TVD), MULTIPLE SCALES METHOD, STATE SPACE METHOD

Abstract

IN THIS PAPER THE EFFECT OF QUADRATIC AND CUBIC NON-LINEARITIES OF THE SYSTEM CONSISTING OF THE CRANKSHAFT AND TORSIONAL VIBRATION DAMPER (TVD) IS INTO CONSIDERED.TVD CONSISTS OF NON-LINEAR ELASTOMER MATERIAL USED FOR CONTROLLING THE TORSIONAL VIBRATION OF CRANKSHAFT. THE METHOD OF MULTIPLE SCALES IS USED TO SOLVE THE GOVERNING EQUATIONS OF THE SYSTEM. MEANWHILE, THE FREQUENCY RESPONSE OF THE SYSTEM FOR BOTH HARMONIC AND SUB-HARMONIC RESONANCES IS EXTRACTED.  IN ADDITION, THE EFFECTS OF DETUNING PARAMETERS AND OTHER DIMENSIONLESS PARAMETERS FOR A CASE OF HARMONIC RESONANCE ARE INVESTIGATED. MOREOVER, THE EXTERNAL FORCES INCLUDING BOTH INERTIA AND GAS FORCES ARE SIMULTANEOUSLY APPLIED INTO THE MODEL. FINALLY, IN ORDER TO STUDY THE EFFECTIVENESS OF THE PARAMETERS, THE DIMENSIONLESS GOVERNING EQUATIONS OF THE SYSTEM ARE SOLVED, CONSIDERING THE STATE SPACE METHOD. THEN, THE EFFECTS OF THE TORSIONAL DAMPER AS WELL AS ALL CORRESPONDING PARAMETERS OF THE SYSTEM ARE DISCUSSED.

Author Biographies

ROOHOLLAH TALEBITOOTI, SCHOOL OF MECHANICAL ENGINEERING IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

ASSISTANT PROF, SCHOOL OF MECHANICAL ENGINEERING

MEHDI MOROVATI, SCHOOL OF AUTOMOTIVE ENGINEERING, IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

MSC., SCHOOL OF AUTOMOTIVE ENGINEERING

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Published

2014-11-04

Issue

Vol. 11 No. 14 (2014)

Section

Articles

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