Author: John R. ZellerPublisher:
ISBN:
Category : Electrohydraulic servomechanisms
Languages : en
Pages : 36
Book Description
Fast response electrohydraulic valve-controlled piston servo systems.
Analysis of Dynamic Performance Limitations of Fast Response (150 to 200 Hz) Electrohydraulic Servos
Author: John R. ZellerPublisher:
ISBN:
Category : Electrohydraulic servomechanisms
Languages : en
Pages : 36
Book Description
Fast response electrohydraulic valve-controlled piston servo systems.
NASA Technical Note
Author: NASA Tech Brief
Author: United States. National Aeronautics and Space Administration Technology Utilization DivisionPublisher:
ISBN:
Category :
Languages : en
Pages : 698
Book Description
NASA Scientific and Technical Reports
Author: United States. National Aeronautics and Space Administration Scientific and Technical Information DivisionPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 966
Book Description
A Selected Listing of NASA Scientific and Technical Reports
Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information DivisionPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 962
Book Description
NASA Scientific and Technical Reports and Publications for 1969 - A Selected Listing
Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information DivisionPublisher:
ISBN:
Category : Science
Languages : en
Pages : 956
Book Description
Study of Turbojet Combustor Dynamics Using Sweep-frequency Data
Author: John R. SzuchPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 52
Book Description
The analysis of data obtained from sweep-frequency testing of the 585 turbojet combustor is discussed.Bode plots of the response of combustor pressure to sinusoidal disturbances in fuelspray- nozzle pressure are presented for a range of fuel flows. An analog simulation was developed and used to match the experimental data and to identify the combustion dynamics. The effects of primary or burning-zone fuel-to-air ratio on the system response were also investigated. The experimental data were fit by linear transfer function forms to be used in overall system studies.
NASA Technical Paper
Author: Servosystem Design of a High-response Slotted-plate Overboard Bypass Valve for a Supersonic Inlet
Author: George H. NeinerPublisher:
ISBN:
Category : Jet engines
Languages : en
Pages : 28
Book Description
The servosystem design of a high-response airflow bypass valving system for supersonic mixed-compression inlets or other industrial or aerospace pneumatic systems is described. The valve utilizes a multislotted plate to achieve flow area change with minimum stroke and mass of moving parts. The servosystem utilizes a hydraulic piston-in-cylinder actuator close-coupled to a two-stage electrohydraulic servovalve. Using electronic compensation the small-amplitude response of the system, modulating 14 percent of its full flow area, is flat within 0 to -3 dB to 110 Hz. (161 cm [to the second power] ). A mathematical model of the system is presented and analytical responses are compared with experimental data.
NASA Technical Paper
Author: United States. National Aeronautics and Space AdministrationPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 44
Book Description
