Download or read book Liquid Rocket Engine Turbopump Inducers written by NASA. Space Vehicle Design Criteria (Chemical Propulsion) and published by . This book was released on 1971 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Engine Turbopump Inducers written by National Aeronautics and Space Administration and published by CreateSpace. This book was released on 2014-04-28 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inducer is the axial inlet portion of the turbopump rotor whose function is to raise the inlet head by an amount sufficient to preclude cavitation in the following stage. The inducer may be an integral part of the pump rotor or it may be mounted separately on the pump shaft upstream of the impeller.
Download or read book Liquid Rocket Engine Turbopump Inducers written by Jakob K. Jakobsen and published by . This book was released on 1971 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Engineering for Design of Liquid Propellant Rocket Engines written by Dieter K. Huzel and published by AIAA. This book was released on 1992 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Engine Turbopump Shafts and Couplings written by L. K. Severud and published by . This book was released on 1972 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Engine Turbopump Rotating shaft Seals written by R. E. Burcham and published by . This book was released on 1978 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Engine Axial flow Turbopumps written by and published by . This book was released on 1978 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Engine Centrifugal Flow Turbopumps written by R. B. Furst and published by . This book was released on 1973 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Engine Turbopump Rotating shaft Seals written by R. E. Burcham and published by . This book was released on 1978 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forced Response Measurements of Cavitation Dynamics in a Rocket Engine Turbopump Inducer written by Matthew Charles Campbell and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cavitation is a serious concern in liquid fueled launch vehicle propulsion systems which operate at high speeds to meet the engine thrust requirements. There are several types of cavitation instabilities, but of concern in this work is one-dimensional planar oscillations known as cavitation surge. In a launch vehicle the resulting dynamic behavior can lead to thrust oscillations and couple with the structures of the launch vehicle, leading to POGO instability (named after the POGO jumping stick) that can cause catastrophic failure. This thesis introduces a foundation for a method of forced response characterization of cavitating inducers and presents for the first time, damping ratio and natural frequency measurements of surge dynamics using a forced response system identification approach over different cavitation numbers. Cavitation dynamics have been experimentally characterized in the past via transmission matrices. In this work, dynamic pressure and velocity measurements were used to form transfer functions of the cavitating inducer. Experimental guidelines were developed to increase the stiffness of the structure to isolate fluid perturbations, condition the flow downstream of the inducer using honeycomb and wire mesh elements which increased the signal-to-noise ratio of the velocity measurements by 28%, and signal processing techniques to average and smooth the measurements.
Download or read book Turbopump Systems for Liquid Rocket Engines written by and published by . This book was released on 1974 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Engine Turbopump Shafts and Couplings written by L. K. Severud and published by . This book was released on 1972 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressurization Systems for Liquid Rockets written by United States. National Aeronautics and Space Administration and published by . This book was released on 1976 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbopumps for Liquid Rocket Engines written by Maynard L. Joe Stangeland and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Control theoretic Approach to Forced Response System Identification of Rocket Engine Turbopump Cavitation Dynamics written by Mark Chang (S.M.) and published by . This book was released on 2020 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: High performance turbopumps are used in many rocket propulsion systems to reduce the weight and cost of the system. However, to meet these weight conditions and the demands of the rocket engine, turbopumps must operate at high speeds and low inlet pressures. This can lead to cavitation in the turbopump inducer. There are several distinct types of cavitation dynamics. Of concern to this project is cavitation surge which are planar oscillations in the flow that occur at frequencies usually 0.1 - 0.3 times rotor frequency. Cavitation surge can cause the turbopump to modulate the mass flow into the rocket engine combustion chamber and thus yield variations in engine thrust. This in turn can lead to self excited fluid-structure oscillations and POGO instability which can result in mission failure. Characterization of the cavitating inducer dynamics is critical to the design of the propulsion system so as to guarantee sufficient stability margin. This thesis introduces a control theoretic modeling framework that captures the free response cavitation dynamics of turbopump inducers. The reduced order framework was then used to guide the design of a forced response experiment. The design of experiment included the placement of sensors, a piston actuator, and an accumulator to ensure high signal to noise ratio and coherence. Forced response experiments were carried out to experimentally validate the model, and to characterize the cavitation surge dynamics. The experiments identified challenges with the test facility, specifically vibrations of the piping and support structure which induced large fluid perturbations. Due to time constraints and COVID-19, a second test was not possible. This thesis provides useful guidelines and best practices paving the way for future forced response system identification experiments.
Download or read book Liquid Rocket Actuators and Operators written by James G. Absalom and published by . This book was released on 1973 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Rocket Valve Components written by H. J. Ellis and published by . This book was released on 1973 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
