Research On Analysis Method Of Shock Resistance Performance Of Marine Gear Box

The shock of underwater explosion has a great destructive effect on marine equipment.Gear box is an indispensable power system equipment on ships.So it is of great practical significance to research the shock resistance of marine gear boxes.Therefore,this article focuses on the research of shock resistance analysis methods for marine gear boxes.The main work content is as follows: Firstly,in response to the shock performance of marine gear boxes,the article used equivalent static method,dynamic design analysis method,and time domain analysis method to calculate the structural characteristics of the shock response of marine gear boxes in the transverse,vertical,and longitudinal directions.Secondly,in response to the issue of shock load transmission characteristics,a multi condition shock test is conducted on the gear box model using a shock testing machine,and the transmission characteristic response of shock load in different structural forms was obtained.Then,in response to the accuracy issue of the time domain analysis method,the article uses a method of comparing time domain simulation results with experimental data,analyzed the deviation between the experiment and simulation,and verified the accuracy of the time-domain analysis method.Besides,to study the shock of different time domain loads on marine gearboxes,using different methods to transform shock spectrums into time domain loads,obtained dynamic response of marine gear box structure under different loads.Finally,regarding the shock of the peak pulse width of the shock load on the marine gear box,the article conducts shock calculations on marine gear box under different load conditions,obtained the shock response results of different peaks and pulse widths on the box,and analyzed its laws.This article using different analysis methods to analyzes the shock resistance performance of marine gear boxes,obtained the response characteristics of the structure of marine gear boxes,which can provide theoretical and data support for the design and improvement of shock resistance of marine gear boxes.