Application of modal and harmonic analysis to predict the automotive transmission vibration at an early stage of design
https://doi.org/10.51187/0135-3152-2021-3-30-36
Abstract
Introduction (problem statement and relevance). The need to increase the operating speeds and input torque of automobile transmissions because of their vibration is becoming a more and more urgent problem.
The purpose of the study was to substantiate the applicability of harmonic analysis, which makes it possible to determine the actual values of vibration values during a steady oscillatory process, for the initial assessment of the gearbox vibration activity.
Methodology and research methods. The calculation of the gearbox vibration activity was carried out by modal and harmonic analyses, implemented by the finite element method, and followed by the experimental study of gearbox vibration on a test bench.
Scientific novelty and results. The presented experimental and calculated results of the research show that the difference between the experimental and calculated values is no more than 4.2%. This proves the possibility of applying modal and harmonic analysis to predict the gearbox vibration state at an early stage of product design at the stand.
Practical significance. The given calculation algorithm makes it possible to predict, with a sufficient degree of accuracy, the vibration of the gearbox before the manufacture of a prototype in experimental production.
About the Author
D. S. Novikov
PJSC “Avtodizel”
Russian Federation
Russian Federation
Novikov D.S., PhD (Eng), chief design-engineer
Yaroslavl 150040, Russian Federation
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Review
For citations:
Novikov D.S. Application of modal and harmonic analysis to predict the automotive transmission vibration at an early stage of design. Trudy NAMI. 2021;(3):30-36. (In Russ.) https://doi.org/10.51187/0135-3152-2021-3-30-36
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