Bell Helicopter Textron Inc.

Textron Innovations Inc.

Keith Hale

Charles Eric Covington

Walter West Riley

Brian Edward Tucker

James E Harris

Gary Scott Froman

Joseph Wendelsdorf

Troy J Bunch, Jr

Joseph W Wendelsdorf

Gary Froman

A diagnosis system and method to detect wear between a first set of teeth of a first gear and a second set of teeth of a second intermeshing gear, the diagnosis system having a first target associated with the first set of teeth, a second target associated with the second set of teeth, a first sensor adapted to detect the location of the first target, a second sensor adapted to detect the location of the second target, and a processing system in data communication with the first sensor and the second sensor, the processing system being adapted to process a spatial relationship between the first target relative to the second target after a time lapse of rotation between the first set of teeth and the second set of teeth.

System and method for developing fault diagnostics and failure prognosis of spline wear in a drive system

An apparatus comprising a housing, a gearing system disposed within the housing and comprising a plurality of targets, a plurality of sensors incorporated within the housing, a processor in electrical signal communication with the sensors, and a user interface in signal communication with the processor. A method comprising providing a drive system comprising a drive system power measuring and diagnostic system, wherein the drive system is configured to rotate one or more components comprising a plurality of targets, sense the targets with a sensor pair, thereby producing a data signal, process the data signal from the one or more sensor pairs, thereby producing a processed data signal, and output the processed data signal to a user.

Drive system power measurement and diagnostic system

A method of optimizing an operation of a rotorcraft includes measuring actual usage of the tail rotor drive shaft during operation of the rotorcraft, the actual usage including at least a torque measurement. The method further includes a step of adjusting a life of the tail rotor drive shaft based upon the measuring of the actual usage. Another method of the present disclosure includes determining a main rotor mast torque by measuring a tail rotor drive shaft torque and deriving a main rotor mast torque by considering the measured tail rotor drive shaft torque and a total torque output of an engine. A system of the present disclosure is configured for determining the main rotor mast torque in part by measuring the tail rotor torque.

System and method of measuring and monitoring torque in a rotorcraft drive system

A transducer test system for testing accelerometers or velocity transducers includes a signal conditioner and a shaker that can be used in a field environment, for example by an avionics technician at an aircraft. A test transducer and a reference transducer, which is a known-good version of the test transducer, are mounted onto the shaker and electrically connected to the signal conditioner. The technician shakes the two transducers simultaneously by manually shaking the shaker. The signal conditioner receives and compares the signals output from the test and reference transducer in order to determine the operating condition of the test transducer.

System and method for testing of transducers

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Joshua, TX, United States of America

Keith Hale