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首页> 外文会议>American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference 2004(IJTC 2004) vol.1 pt.A; 20041024-27; Long Beach,CA(US) >Test Results for Leakage and Rotordynamic Coefficients of Floating Ring Seals in a High Pressure, High Speed Turbopump
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Test Results for Leakage and Rotordynamic Coefficients of Floating Ring Seals in a High Pressure, High Speed Turbopump

机译：高压，高速涡轮泵中的浮动环密封件的泄漏和转子动力系数的测试结果

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摘要

Test results are presented for short floating ring seals (D = 53.0 mm, L/D=0.15) using a smooth surface and a round-hole pattern defined as damper floating ring seal (h/Cr = 3, γ = 0.34 : the ratio of hole area to surface area) for supplied pressures of 3.0, 5.0, and 7.0 MPa, respectively, with the shaft operating speed up to 24,800 rpm. The measured data includes leakage, attitude angle, eccentric ratio, and rotordynamic coefficients such as stiffness, damping, and inertia. When the floating ring seals are locked up, the eccentric ratio of the smooth surface floating ring seal is lower than that of the damper floating ring seal. The attitude angle increases linearly with the operating speeds. The damping coefficients of damper floating ring seal are higher than those of floating ring seal. Whirl frequency ratios of floating ring seal are lower than the damper floating ring seal with high eccentric ratio at low operating speed range. The design parameters determined from these test results will be used for high pressure and high speed turbopump seals in liquid rocket engine system.
机译：给出了使用光滑表面和定义为阻尼浮环密封件的圆孔图案（h / Cr = 3，γ= 0.34：比率）的短浮环密封件（D = 53.0 mm，L / D = 0.15）的测试结果。孔面积与表面积之比），分别提供3.0、5.0和7.0 MPa的压力，并且轴的运行速度高达24,800 rpm。测得的数据包括泄漏，姿态角，偏心率和转子动力学系数，例如刚度，阻尼和惯性。当浮动环密封件被锁定时，光滑表面浮动环密封件的偏心率低于阻尼器浮动环密封件的偏心率。姿态角随运行速度线性增加。阻尼器浮动环密封的阻尼系数高于浮动环密封的阻尼系数。在低工作速度范围内，浮动环密封件的涡流频率比低于偏心率高的阻尼器浮动环密封件。根据这些测试结果确定的设计参数将用于液体火箭发动机系统中的高压和高速涡轮泵密封件。

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