Title: A study on the enhancement of amplitude of DCT measured load spectrum considering time-frequency domain damage characteristics

Authors: Zeng Li-kui

Addresses: Institute of intelligent manufacturing and Automotive, Chongqing Technology and Business Institute, Chongqing, 401520, China

Abstract: The indoor enhancement simulation bench test of transmission is an important method of assessment, evaluation and promotion of its performance. On the basis of equivalence between time domain and frequency domain damages, an editing and evaluating method of fatigue damage is proposed based on quantitative damage, with which a real load spectrum measured is edited and concentrated. Through test verification, we find that the editing method of load spectrum proposed preserves the damage characteristics of load spectrum in both time and frequency domains, and the road simulation test with the edited load spectrum can accurately assess the fatigue reliability of dual clutch automatic transmission (DCT) key components within a time period greatly shortened.

Keywords: DCT; dual clutch automatic transmission; enhancement of amplitude; road simulation; time domain damage; frequency domain damage; simulation.

DOI: 10.1504/IJVSMT.2020.111682

International Journal of Vehicle Systems Modelling and Testing, 2020 Vol.14 No.2/3, pp.163 - 179

Received: 30 Jan 2020
Accepted: 08 Feb 2020

Published online: 06 Dec 2020 *

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