Construction and Application of Prediction Spectrum between PEMFC’s Performances and Ship Vibration

Abstract

In order to analyze and evaluate the influence of ship vibration on the performance of proton exchange membrane fuel cell (PEMFC), firstly, the frequency domain and amplitude distribution characteristics of ship vibration are studied. Based on the general PEMFC simulation mathematical model, a boundary condition, loading method based on sliding grid technology (ZM-UDF) is proposed to establish the technical route of numerical simulation of PEMFC influence relationship on ship vibration performance. Secondly, in the full solution domain of ship vibration, a numerical simulation scheme is designed to study the influence of ship vibration direction, frequency and amplitude on the performance of proton exchange membrane fuel cell (PEMFC). Through simulation calculation, the performance database of ship vibration-proton exchange membrane fuel cell is constructed. Furthermore, the linear programming model of simulation data is established by using the difference- piecewise fitting method, and a prediction map construction method of ship vibration proton exchange membrane fuel cell performance characterization based on numerical simulation data is proposed. The performance prediction map of ship vibration proton exchange membrane fuel cell is drawn and verified by simulation.