Simulating a small turboshaft engine in real-time multiprocessor simulator (RTMPS) environment
A Real-Time Multiprocessor Simulator (RTMPS) has been developed at NASA Lewis Research Center. The RTMPS uses parallel microprocessors to achieve computing speeds needed for real-time engine simulation. This report describes the use of the RTMPS system to simulate a small turboshaft engine. The process of programming the engine equations and distributing them over one, two, and four processors is discussed. Steady-state and transient results from the RTMPS simulation are compared with results from a main-frame-based simulation. Processor execution times and the associated execution time savings for the two and four processor cases are presented using actual data obtained from the RTMPS system. Included is a discussion of why the minimum achievable calculation time for the turboshaft engine model was attained using four processors. Finally, future enhancements to the RTMPS system are discussed including the development of a generalized partitioning algorithm to automatically distribute the system equations among the processors in optimum fashion.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- OSTI ID:
- 5827115
- Report Number(s):
- N-86-16221; NASA-TM-87216; E-2876; CONF-860119-5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330103* -- Internal Combustion Engines-- Turbine
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALGORITHMS
ARRAY PROCESSORS
COMPUTERIZED SIMULATION
COMPUTERS
DESIGN
ELECTRONIC CIRCUITS
ENGINES
MATHEMATICAL LOGIC
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PARALLEL PROCESSING
PROGRAMMING
SIMULATION
TURBOJET ENGINES