Engine vibration and engine trim balance test system, apparatus and method
First Claim
1. A system for testing simulating engine vibration for an engine monitoring unit, the system comprising:
- a processor for executing a device control application stored in memory to generate a plurality of components of a plurality of simulated accelerometers, each simulated accelerometer including;
an engine simulator that generates, via the processor, a plurality of engine simulator outputs;
an accelerometer signal simulator that receives, via the processor, the plurality of engine simulator outputs and generates a plurality of accelerometer signal simulator outputs;
an accelerometer waveform generator circuit, including a digital-to-analog (D/A) converter, that receives the plurality of accelerometer signal simulator outputs and synchronizes at least one of the plurality of accelerometer signal simulator outputs to a reference timing signal from one of the plurality of engine simulator outputs, the accelerometer waveform generator generating a plurality of accelerometer waveform generator outputs;
a filter section that receives and filters noise from the plurality of accelerometer waveform generator outputs to generate a plurality of filtered accelerometer waveform generator outputs;
a mixer that receives and combines each of the plurality of filtered accelerometer waveform generator outputs to generate a single filtered accelerometer waveform generator output; and
a charge converter that receives and converts the single filtered accelerometer waveform generator output to a current charge vibration simulation output; and
the engine monitoring unit that receives each current charge vibration simulation output from each of the plurality of simulated accelerometers to measure a simulated total engine vibration.
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Accused Products
Abstract
The present disclosure is generally directed to a simulated aircraft engine accelerometer apparatus, system and method that that generates aircraft engine simulator outputs. An accelerometer signal simulator receives aircraft engine simulator outputs and generates accelerometer signal simulator outputs, and an accelerometer waveform generator receives the accelerometer signal simulator outputs and synchronizes at least one accelerometer signal simulator outputs to a reference timing signal from one of the aircraft engine simulator outputs. The simulated accelerometer further includes a filter section that receives and filters noise from the plurality of accelerometer waveform generator outputs to generate a plurality of filtered accelerometer waveform generator outputs, a mixer that receives and combines each of the plurality of filtered accelerometer waveform generator outputs to generate a single filtered accelerometer waveform generator output, and a charge converter that receives and converts the single filtered accelerometer waveform generator output to a current charge vibration simulation output.
24 Citations
20 Claims
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1. A system for testing simulating engine vibration for an engine monitoring unit, the system comprising:
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a processor for executing a device control application stored in memory to generate a plurality of components of a plurality of simulated accelerometers, each simulated accelerometer including; an engine simulator that generates, via the processor, a plurality of engine simulator outputs; an accelerometer signal simulator that receives, via the processor, the plurality of engine simulator outputs and generates a plurality of accelerometer signal simulator outputs; an accelerometer waveform generator circuit, including a digital-to-analog (D/A) converter, that receives the plurality of accelerometer signal simulator outputs and synchronizes at least one of the plurality of accelerometer signal simulator outputs to a reference timing signal from one of the plurality of engine simulator outputs, the accelerometer waveform generator generating a plurality of accelerometer waveform generator outputs; a filter section that receives and filters noise from the plurality of accelerometer waveform generator outputs to generate a plurality of filtered accelerometer waveform generator outputs; a mixer that receives and combines each of the plurality of filtered accelerometer waveform generator outputs to generate a single filtered accelerometer waveform generator output; and a charge converter that receives and converts the single filtered accelerometer waveform generator output to a current charge vibration simulation output; and the engine monitoring unit that receives each current charge vibration simulation output from each of the plurality of simulated accelerometers to measure a simulated total engine vibration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A simulated engine accelerometer comprising:
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an engine simulator that generates a plurality of engine simulator outputs; an accelerometer signal simulator that receives the plurality of engine simulator outputs and generates a plurality of accelerometer signal simulator outputs; an accelerometer waveform generator circuit that receives the plurality of accelerometer signal simulator outputs and synchronizes at least one of the plurality of accelerometer signal simulator outputs to a reference timing signal from one of the plurality of engine simulator outputs, the accelerometer waveform generator generating a plurality of accelerometer waveform generator outputs; a filter circuit that receives and filters noise from the plurality of accelerometer waveform generator outputs to generate a plurality of filtered accelerometer waveform generator outputs; a mixer circuit that receives and combines each of the plurality of filtered accelerometer waveform generator outputs to generate a single filtered accelerometer waveform generator output; and a charge converter circuit that receives and converts the single filtered accelerometer waveform generator output to a current charge vibration simulation output. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for simulating vibration testing of an engine, the method comprising:
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generating a plurality of engine simulator outputs; generating a plurality of accelerometer signal simulator outputs based on the plurality of engine simulator outputs; synchronizing at least one of the plurality of accelerometer signal simulator outputs to a reference timing signal from one of the plurality of engine simulator outputs, and generating a plurality of accelerometer waveform generator outputs; filtering noise from the plurality of accelerometer waveform generator outputs and generating a plurality of filtered accelerometer waveform generator outputs; combining each of the plurality of filtered accelerometer waveform generator outputs to generate a single filtered accelerometer waveform generator output; and converting the single filtered accelerometer waveform generator output to a current charge vibration simulation output. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification