Dynamic Response of Marine Gear under External Impact Load

Abstract:

In order to determine the anti-shock performance of marine gear, dynamic model of gear-rotor-bearing system under external load is established. On the base of Hertz contact theory, the mathematical model of maximum stress response of the gear tooth contact area is developed and the typical shock spectrum was transferred to double peaks and triangle wave to simulate the process of base excitation. By simulating different impact pulse width and acceleration peak value, the programming result is in good agreement with Finite-Element simulation. The study considers that the bearing oil film can absorb impacting load and Information on stress response of gear contact area under external load could offer references for the design of marine gearbox to enhance the resistance to underwater shock damage.

• Periodical: Advanced Materials Research (Volumes 430-432)
• Pages: 1597-1601
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.430-432.1597
• Online since: January 2012
• Authors: Cheng Li, Chang Hua Qiu, Nian Li Lu
• Keywords: Contact Stress, Dynamic Response, Finite Element Method (FEM), Gearbox

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