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为了确定半人马座火箭/RL-10发动机氢氧输送管路的动态特性,曾进行了一些试验。对RL-10发动机热试车产生的噪音数据,采用功率谱方法进行了研究,确定了基本模态共振频率。还确定了主输送泵的净正抽吸压力与共振频率之间的关系为直线关系。功率谱方法还被用来确定助推泵的动态特性。
In order to determine the dynamic characteristics of the Centaurs rocket / RL-10 engine hydrogen-oxygen transfer line, a number of tests have been conducted. Noise data generated by RL-10 engine heat test was studied by power spectrum method, and the fundamental modal resonance frequency was determined. The relationship between the net positive suction pressure of the main pump and the resonance frequency was also determined as a straight line. The power spectrum method is also used to determine the dynamic characteristics of the booster pump.