带螺旋式谐振腔的火箭强声发生器频响特性分析  

The Frequency Response Characteristic Analysis of the Spiral Resonance Cavity of the Rocket Strong Noise Device

作　　者：陈琳[1] 陈新华[2] 郝健[1] 张攀[1] 

机构地区：[1]装备指挥技术学院研究生院,北京101416 [2]装备指挥技术学院航天装备系,北京101416

出　　处：《科学技术与工程》2011年第17期4018-4022,共5页Science Technology and Engineering

摘　　要：本文建立了火箭强声发生器类比电路模型。仿真分析了二次谐波与螺旋式入口谐振腔在强声发生器中作用。结果表明二次谐波与不同谐振腔入口对谐振腔归一化阻抗和强声发生器频率响应曲线有重要影响。二次谐波可使谐振腔归一化阻抗发生变化,导致强声发生器频率响应曲线失真。螺旋式入口谐振腔可抑制强声发生器二次谐波失真,并对发生器频带扩展均有一定的作用。The analogy circuit models of the rocket strong noise device have been established.The effects of the second-order harmonic and the spiral entrances resonance cavity have been simulated and analyzed.Results show that the second-order harmonic and the spiral entrances resonance cavity play an important role to the Normalized Impedance of resonance cavity and frequency response of the strong noise device.The second-order harmonic can change the Normalized Impedance of the resonance cavity,and cause the distortion of frequency response;the spiral entrances resonance cavity can restrain the distortion,and extend the range of the frequency response.

关 键 词：强声发生器 螺旋式入口谐振腔 二次谐波 归一化阻抗 频率响应 

分 类 号：V433.99[航空宇航科学与技术—航空宇航推进理论与工程]