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公开(公告)号：US11448561B2
公开(公告)日：2022-09-20
申请号：US16375974
申请日：2019-04-05
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale , Ron L. Woods
Abstract: Embodiments are directed to a drive shaft apparatus comprising a first rotary member and a second rotary member arranged coaxially with said first rotary member. The rotary members are fixedly connected at a first end so that they rotate together. Each rotary member has a set of elements spaced apart around its circumference at a second end. The elements on the first rotary member are spaced apart from the elements on the second rotary member at rest. The first rotary member undergoes torsion when a load is applied during rotation, which causes the first rotary member elements to move closer to the second rotary member elements. The first elements engage the second elements when a torque load less than a yield torque is applied to the first rotary member, which transfers at least a portion of the torque load to the second rotary member.
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公开(公告)号：US10464689B2
公开(公告)日：2019-11-05
申请号：US15677885
申请日：2017-08-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale
Abstract: A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including: obtaining original data based on samples of a tachometer signal; processing the original data to obtain rotational information; processing the original data to produce a sine spectrum; determining complex magnitudes of the sine spectrum; removing dominate torsional mode residuals from the complex magnitudes of the sine spectrum to produce a frequency spectrum; and determining a condition indicator from the frequency spectrum.
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公开(公告)号：US20180053359A1
公开(公告)日：2018-02-22
申请号：US15677786
申请日：2017-08-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale
CPC classification number: G07C5/0808 , B64C27/006 , B64C27/12 , B64D2045/0085 , B64F5/60 , G01H1/003 , G01N29/46
Abstract: A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining original data based on samples of a vibration signal; converting the original data to an analytical signal having a real component and an imaginary component; determining complex magnitudes of the analytical signal; processing the complex magnitudes of the analytical signal to produce a frequency-domain signal; and determining complex magnitudes of the frequency-domain signal to generate a shock spectrum.
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公开(公告)号：US10380810B2
公开(公告)日：2019-08-13
申请号：US15677506
申请日：2017-08-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale
Abstract: A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining rotational information associated with the component; receiving original data indicating the toothmesh frequency of the drive train; filtering the original data to remove energy above the toothmesh frequency; interpolating the filtered original data to generate an integer number of samples per tooth passage; and generating an amplified differential coherence (ADC). In some embodiments, an amplified differential coherence gearbox arrangement value (ADCT) is generated.
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Patent Agency Ranking
公开(公告)号：US20180165897A1
公开(公告)日：2018-06-14
申请号：US15677962
申请日：2017-08-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale
Abstract: There is a method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining original data based on samples of a vibration signal and a tachometer signal; generating a time synchronous average vibration signal; processing the time synchronous average vibration signal to produce a frequency-domain spectrum; determining the complex magnitudes of the frequency-domain spectrum; selecting a sub-synchronous band of the complex magnitudes of the frequency-domain spectrum to generate a sub-synchronous spectrum; and determining the mean of the sub-synchronous spectrum to generate a condition indicator.
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公开(公告)号：US20200319042A1
公开(公告)日：2020-10-08
申请号：US16375974
申请日：2019-04-05
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale , Ron L. Woods
Abstract: Embodiments are directed to a drive shaft apparatus comprising a first rotary member and a second rotary member arranged coaxially with said first rotary member. The rotary members are fixedly connected at a first end so that they rotate together. Each rotary member has a set of elements spaced apart around its circumference at a second end. The elements on the first rotary member are spaced apart from the elements on the second rotary member at rest. The first rotary member undergoes torsion when a load is applied during rotation, which causes the first rotary member elements to move closer to the second rotary member elements. The first elements engage the second elements when a torque load less than a yield torque is applied to the first rotary member, which transfers at least a portion of the torque load to the second rotary member.
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公开(公告)号：US10424134B2
公开(公告)日：2019-09-24
申请号：US15677962
申请日：2017-08-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale
IPC: G01M17/00 , G06F7/00 , G06F11/30 , G06F19/00 , G07C5/00 , G07C5/08 , G01M13/021 , G01M13/028 , B64D45/00 , B64C27/12 , B64F5/60 , G01R31/00 , G01H1/08 , G01M13/02 , G01M13/04 , G01N29/00
Abstract: There is a method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining original data based on samples of a vibration signal and a tachometer signal; generating a time synchronous average vibration signal; processing the time synchronous average vibration signal to produce a frequency-domain spectrum; determining the complex magnitudes of the frequency-domain spectrum; selecting a sub-synchronous band of the complex magnitudes of the frequency-domain spectrum to generate a sub-synchronous spectrum; and determining the mean of the sub-synchronous spectrum to generate a condition indicator.
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公开(公告)号：US20180162548A1
公开(公告)日：2018-06-14
申请号：US15677885
申请日：2017-08-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale
CPC classification number: B64D45/00 , B64C27/12 , B64D2045/0085 , B64F5/60 , G01N29/04 , G01N29/14 , G01N29/46 , G07C5/002 , G07C5/0808 , G07C5/085
Abstract: A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including: obtaining original data based on samples of a tachometer signal; processing the original data to obtain rotational information; processing the original data to produce a sine spectrum; determining complex magnitudes of the sine spectrum; removing dominate torsional mode residuals from the complex magnitudes of the sine spectrum to produce a frequency spectrum; and determining a condition indicator from the frequency spectrum.
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公开(公告)号：US20180053358A1
公开(公告)日：2018-02-22
申请号：US15677506
申请日：2017-08-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Rodney Keith Hale
CPC classification number: G07C5/0808 , B64C27/006 , B64C27/12 , B64D2045/0085 , B64F5/60
Abstract: A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining rotational information associated with the component; receiving original data indicating the toothmesh frequency of the drive train; filtering the original data to remove energy above the toothmesh frequency; interpolating the filtered original data to generate an integer number of samples per tooth passage; and generating an amplified differential coherence (ADC). In some embodiments, an amplified differential coherence gearbox arrangement value (ADCT) is generated.
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