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公开(公告)号：US10345352B2
公开(公告)日：2019-07-09
申请号：US15120662
申请日：2015-03-26
发明人： Brian Drost , Howard A. Winston , Michael G. Mastrianni , Anthony Santo Maniaci , Andrew Palladino
摘要： A method of electrical system fault detection and location determination includes measuring a baseline time domain reflectometry (TDR) waveform along a wire path of the electrical system and obtaining an operating TDR waveform along the wire path. The operating TDR waveform is compared to the baseline TDR waveform to derive a difference TDR waveform, and a difference energy is calculated utilizing the difference TDR waveform. The difference energy is monitored over time for peaks in the difference energy and potential electrical system faults are identified via the peaks in the difference energy.
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72.发明授权公开(公告)号：US10337935B2
公开(公告)日：2019-07-02
申请号：US15835814
申请日：2017-12-08
发明人： Derek Geiger , Marcus D. Cappelli , Jonathan K. Garhart , Avinash Sarlashkar , Andrew Brookhart , Mark W. Davis
IPC分类号： G01L1/24 , G01M5/00 , H04B10/071 , G01M11/08 , G02B6/02 , G02B6/44 , B64D45/00 , G01N21/84 , G07C5/08
摘要： A fiber-optic sensor system includes a structure having a fiber-optic cable operatively connected thereto. The system includes a network controller with an interrogator operatively connected to the fiber-optic cable to receive optical energy indicative of a characteristic of the structure therefrom and convert optical energy to electrical energy and electrical energy to optical energy for data communication. A sensor and/or a data source are operatively connected to the fiber-optic cable through the network controller to transmit data through the fiber-optic cable and receive data therefrom.
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公开(公告)号：US10336449B2
公开(公告)日：2019-07-02
申请号：US15132883
申请日：2016-04-19
发明人： Mark R. Alber
摘要： A vertical take-off and landing (VTOL) aircraft is provided and includes a fuselage, wings extending outwardly from opposite sides of the fuselage, nacelles supportively disposed on the wings and reversely oriented, axial flow engines disposed in each of the nacelles to generate mechanical energy for driving lift and thrust generating prop-rotor rotations.
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公开(公告)号：US10336436B2
公开(公告)日：2019-07-02
申请号：US15329411
申请日：2015-09-28
摘要： A method for controlling a propeller of an aircraft, comprises receiving, with a processor, one or more signals indicative of commanded collective pitch of the propeller; receiving, with the processor, one or more sensed signals indicative of propeller axial speed, propeller rotational speed, and air density; estimating, with the processor, a propeller torque and propeller thrust from one or more of the propeller axial speed, the propeller rotational speed, and the air density; determining, with the processor, information indicative of an error value between a desired torque and a measured torque in the propeller; determining, with the processor, information indicative of a corrected pitch command in response to the determining of the error value; combining, with the processor, the corrected pitch command with the propeller rotational speed into an adjustment solution; providing, with the processor, the propeller with the adjustment solution.
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公开(公告)号：US10329033B2
公开(公告)日：2019-06-25
申请号：US15543269
申请日：2016-01-13
发明人： JinKyu Choi , Aaron T. Nardi , Michael A. Klecka , Robert Guillemette , Jeffrey Michael Mendoza
摘要： A method of repairing or, in certain cases, strengthening a metallic substrate at a damage site is provided and includes removing material from the substrate around the damage site to form a recess, and cold spraying particulate material into the recess to form a bead of deposited material.
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公开(公告)号：US20190154200A1
公开(公告)日：2019-05-23
申请号：US16316766
申请日：2017-07-11
发明人： Adam R. Glasser , Dwaine Wint , John J. Baldyga , Michael F. Mullen , David M. Lutian , Lindsey McKan
摘要： A gearbox includes a housing including a lubricant reservoir, at least one gear system arranged in the housing, at least one lubricant delivery passage operable to direct a flow of lubricant from a lubricant reservoir onto the at least one gear system, at least one lubricant return passage operable to guide the flow of lubricant to the lubricant reservoir, and a lubricant-out sensor fluidically connected to the at least one lubricant return passage. The lubricant-out sensor is operable to detect a non-pressure based parameter of the lubricant.
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公开(公告)号：US20190144327A1
公开(公告)日：2019-05-16
申请号：US15809657
申请日：2017-11-10
发明人： John E. Holowczak
IPC分类号： C03C3/04 , C03B23/025 , B64C1/14 , F41H5/26
摘要： A method of making a transparent article includes mixing an oxygen source, a nitrogen source, a magnesium source, a silicon source and a calcium source. The oxygen source, the nitrogen source, the magnesium source, the silicon source, and the calcium source are milled and heated to form a molten oxynitride glass modified by calcium and magnesium. The molten oxynitride glass modified by calcium and magnesium is then cooled to form a transparent body having ballistic resistance with a level of performance satisfying Level IV of National Institute of Justice Standard 0108.01. Transparent articles having transparent bodies formed from the oxynitride glass are also described.
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公开(公告)号：US10287008B2
公开(公告)日：2019-05-14
申请号：US15232319
申请日：2016-08-09
IPC分类号： B64C27/46 , B64C27/473 , B64F5/10 , B29C73/24
摘要： A bond fixture includes a first fixture having a heater and a plurality of clamps. Each of the plurality of clamps includes a first member and a second member rotatable between a first position and a second position. A second fixture includes a root end lift translatable vertically between a retracted position and an extended position and a root end clamp translatable along a horizontal axis. The root end clamp is configured to cooperate with the root end.
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公开(公告)号：US20190135421A1
公开(公告)日：2019-05-09
申请号：US16230321
申请日：2018-12-21
发明人： Ryan Lehto , Eric C. Boyle , Sven R. Lofstrom , David Littlejohn
摘要： A rotor blade disassembly method includes applying spanwise support to a rotor blade body and heating a bond disposed on an end of the rotor blade body. The method also includes removing the spanwise support from the rotor blade body and exerting shear stress on the bond using weight of the rotor blade body. A blade disassembly system is also described.
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公开(公告)号：US10266279B2
公开(公告)日：2019-04-23
申请号：US15509921
申请日：2015-09-14
摘要： A system and method for identifying a slung load for an aircraft with one or more sensors includes receiving, with a processor via one or more sensors, sensor information related to flight dynamics data for the aircraft; determining, with the processor, control input commands for the aircraft in response to the receiving of the flight dynamics data; determining, with the processor, signals indicative of an estimated pendulum frequency; and determining, with the processor, parameters associated with the slung load in response to the determining of the estimated pendulum frequencies.
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