超重环境下摇板造波的理论分析

摘要

ABSTRACT:Objective To provide theoretical basis for making marine centrifuge and study the influence of supergravity environment on the value of the modulation transfer function (ratio of rocker panel swing to waves). Methods By means of C language and MATLAB software, the theoretical derivation was conducted of wave generation using rocker panels under supergravity. Results In deep water, MATLAB graph showed that the value of the transfer function decreased along with the increased of acceleration of gravity (centrifugal acceleration level). In shallow water, the frequency was calculated as 31.4159 by C language and the transfer function was 1.9801 at the water depth and wave board of 1 meter under normal gravity; when the gravitational acceleration was up to 150g, the transfer function was 0.48504. Conclusion No matter in deep water or shallow water, the transfer function values decreases along with the increase of acceleration of gravity.%目的：研究超重环境对传递函数值（摇板摆幅与波浪波幅的比值）的影响，为海工离心机的研制提供理论依据。方法借助C语言以及Matlab软件，进行超重环境下摇板造波的理论推导。结果在深水条件下，利用Matlab计算出的曲线图表明，传递函数值随着重力加速度（离心加速度水平）的增大而减小；在浅水条件下，用C计算出频率为31.4159，水深和摇板都为1 m时，在常重力下，传递函数值为1.9801；在重力加速度提高到150g时，传递函数值为0.48504。结论不管是深水条件还是浅水条件下，传递函数值都随着重力加速度的增大而减小。