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Digital-computer normal shock position and restart control of a mach 2.5 axisymmetric mixed-compression inlet
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cole, G. L. Arpasi, D. J. Neiner, G. H. |
| Copyright Year | 1972 |
| Description | Digital computer control of a mixed-compression inlet is discussed. The inlet was terminated with a choked orifice at the compressor face station to dynamically simulate a turbojet engine. Inlet diffuser exit airflow disturbances were used. A digital version of a previously tested analog control system was used for both normal shock and restart control. Digital computer algorithms were derived using z-transform and finite difference methods. Using a sample rate of 1000 samples per second, the digital normal shock and restart controls essentially duplicated the inlet analog computer control results. At a sample rate of 100 samples per second, the control system performed adequately but was less stable. |
| File Size | 2118058 |
| Page Count | 52 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720022153 |
| Archival Resource Key | ark:/13960/t1qg3gc08 |
| Language | English |
| Publisher Date | 1972-08-01 |
| Access Restriction | Open |
| Subject Keyword | Propulsion Systems Equipment Specifications Digital Systems Algorithms Engine Inlets Analog Computers Engine Control Turbojet Engines Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
