Abstract

Theoretical studies and design studies have been conducted to demonstrate the possibility of using a long hydrodynamic damper in the supports of a hydrogen pump rotor was shown. The complex problem of rotor dynamics and design synthesis of a hydrodynamic damper for a turbopump assembly (TPA) was solved. The geometric parameters of the hydrodynamic damper are determined that ensure the necessary damping level, d = 3 × 10³ N s/m. It is shown that at such a damping level, the amplitude of rotor oscillations does not exceed the value of clearances in supports and on blade shoulders.

中文翻译：

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低温燃料航空燃气涡轮发动机涡轮泵总成阻尼支撑的开发

摘要

已经进行了理论研究和设计研究，以证明显示了在氢泵转子的支架中使用长水力阻尼器的可能性。解决了转子动力学的复杂问题以及涡轮泵总成（TPA）的液力阻尼器的设计综合问题。确定液力阻尼器的几何参数以确保必要的阻尼水平d = 3×10 ³ N s / m。结果表明，在这样的阻尼水平下，转子振荡的幅度不会超过支架和叶片肩部间隙的值。