The invention discloses a universal simulator for aircraft engines. The universal simulator comprises an upper industrial
personal computer, a
simulation measurement and control computer, a display control
desk, a combination instrument case with a plurality of instrument
hardware modules, an instrument extension case, a
signal adaptation unit, a direct-
current voltage-stabilized source and a special testing cable. The universal simulator has the advantages that mathematical models of the engines are operated by an embedded high-performance real-time
operating system of the
simulation measurement and control computer, so that the real-time performance and the effectiveness of
simulation experiments can be guaranteed; hardware architectures for forming testing systems are standard PXI [PCI (
peripheral component interconnect) extensions for
instrumentation]
bus open architectures, accordingly, the
hardware modules of various mature PXI
bus interfaces can be extended and configured according to particular testing application, and the universal simulator is high in
automation degree,
extensibility and compatibility and good in
maintainability; the
signal adaptation unit is configured with standard and universal electric connectors by means of integration, and only corresponding matched testing connecting cables need to be replaced, so that electric connection of the testing systems can be quickly reconstructed by the simulator for the engines, and requirements of platforms on the universality can be met.