Rotation flexure with temperature controlled modal frequency

Salas, Theodore E.; Barney, Patrick S.; Ison, Aaron M.; Akau, Ronald L.; Weir, Nathan

Title: Rotation flexure with temperature controlled modal frequency

Abstract

A flexure bearing includes an inner race, an outer race, and a plurality of substantially planar radially extending blades coupled between the inner and outer race. The blades have a thickness that is thinner than a thickness of the inner and outer races. The inner race, outer race, and blades have substantially the same height. At least one heating element is coupled to the inner race and/or the outer race. The heating element is configured to apply heat to the race that it is coupled to in order to tune the flexure bearing.

Inventors:: Salas, Theodore E.; Barney, Patrick S.; Ison, Aaron M.; Akau, Ronald L.; Weir, Nathan

Issue Date:: 2019-05-14

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1568330

Patent Number(s):: 10288121

Application Number:: 15/667,524

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS

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F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS
F16F1/185 - {characterised by shape or design of individual leaves

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F16C19/525 - {related to temperature and heat, e.g. insulation}
F16C2380/00 - Electrical apparatus
F16C2300/14 - Large applications, e.g. bearings having an inner diameter exceeding 500 mm
F16C11/12 - incorporating flexible connections, e.g. leaf springs
F16C41/00 - Other accessories, {e.g. devices integrated in the bearing not relating to the bearing function as such}

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS
F16F2238/022 - leaf-like, e.g. of thin, planar-like metal

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F16C2202/20 - Thermal properties
F16C37/007 - {of rolling bearings}
F16C27/04 - Ball or roller bearings, e.g. with resilient rolling bodies

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS
F16F15/073 - using only leaf springs

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F16C17/243 - {related to temperature and heat, e.g. for preventing overheating}

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS
F16F3/023 - {composed only of leaf springs}

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F16C2370/20 - Optical, e.g. movable lenses or mirrors
F16C19/522 - {related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload}
F16C19/527 - {related to vibration and noise}
F16C17/22 - with arrangements compensating for thermal expansion

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DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Resource Relation:: Patent File Date: 08/02/2017

Country of Publication:: United States

Language:: English

Citation Formats


                    Salas, Theodore E., Barney, Patrick S., Ison, Aaron M., Akau, Ronald L., and Weir, Nathan. Rotation flexure with temperature controlled modal frequency.  United States: N. p., 2019. 
        Web.

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                    Salas, Theodore E., Barney, Patrick S., Ison, Aaron M., Akau, Ronald L., & Weir, Nathan. Rotation flexure with temperature controlled modal frequency.  United States.

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                    Salas, Theodore E., Barney, Patrick S., Ison, Aaron M., Akau, Ronald L., and Weir, Nathan. Tue .  
        "Rotation flexure with temperature controlled modal frequency".  United States.  https://www.osti.gov/servlets/purl/1568330.

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@article{osti_1568330,

  title        = {Rotation flexure with temperature controlled modal frequency},

  author       = {Salas, Theodore E. and Barney, Patrick S. and Ison, Aaron M. and Akau, Ronald L. and Weir, Nathan},

  abstractNote = {A flexure bearing includes an inner race, an outer race, and a plurality of substantially planar radially extending blades coupled between the inner and outer race. The blades have a thickness that is thinner than a thickness of the inner and outer races. The inner race, outer race, and blades have substantially the same height. At least one heating element is coupled to the inner race and/or the outer race. The heating element is configured to apply heat to the race that it is coupled to in order to tune the flexure bearing.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {5}

}

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Works referenced in this record:

Elastomeric torsional spring having tangential spokes with varying elastic response
patent, May 1993

Whightsil, Sr., Gary L.
US Patent Document 5,209,461
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5209461

Resistance mechanism with series connected resistance packs
patent, August 2002

Francis, Paul S.; Nelson, William N.; Rouse, Teryl K.
US Patent Document 6,440,044
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Rotary flexure
patent, November 2000

Calvet, Robert J.
US Patent Document 6,146,044
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Bi-flex pivot
patent, February 1989

Brooks, John J.
US Patent Document 4,802,784
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Tangential linear flexure bearing
patent, February 1996

Pan, Robert B.; Johnson, Jr., Alfred L.; Wong, Tse E.
US Patent Document 5,492,313
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5492313

Suspension system having two degrees of rotational freedom
patent, June 1996

Ostaszewski, Miroslaw A.
US Patent Document 5,529,277
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5529277

Spring for a ring laser gyro dither mechanism
patent, September 1982

Wirt, Thomas M.; Chechile, Robert A.
US Patent Document 4,349,183
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Title: Rotation flexure with temperature controlled modal frequency

Abstract

Citation Formats

Elastomeric torsional spring having tangential spokes with varying elastic response patent, May 1993

Resistance mechanism with series connected resistance packs patent, August 2002

Rotary flexure patent, November 2000

Bi-flex pivot patent, February 1989

Tangential linear flexure bearing patent, February 1996

Suspension system having two degrees of rotational freedom patent, June 1996

Spring for a ring laser gyro dither mechanism patent, September 1982

Elastomeric torsional spring having tangential spokes with varying elastic response
patent, May 1993

Resistance mechanism with series connected resistance packs
patent, August 2002

Rotary flexure
patent, November 2000

Bi-flex pivot
patent, February 1989

Tangential linear flexure bearing
patent, February 1996

Suspension system having two degrees of rotational freedom
patent, June 1996

Spring for a ring laser gyro dither mechanism
patent, September 1982