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:

2017-09-12

Research Org.:

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

Sponsoring Org.:

USDOE

OSTI Identifier:

1390170

Patent Number(s):

9759263

Application Number:

14/540,364

Assignee:

National Technology & Engineering Solutions of Sandia, LLC

Patent Classifications (CPCs):

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

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS

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

F16C11/12 - incorporating flexible connections, e.g. leaf springs
F16C17/22 - with arrangements compensating for thermal expansion
F16C17/243 - {related to temperature and heat, e.g. for preventing overheating}
F16C19/06 - with a single row or balls
F16C19/522 - {related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload}
F16C19/525 - {related to temperature and heat, e.g. insulation}
F16C19/527 - {related to vibration and noise}
F16C19/54 - Systems consisting of a plurality of bearings with rolling friction
F16C2202/20 - Thermal properties
F16C2300/14 - Large applications, e.g. bearings having an inner diameter exceeding 500 mm
F16C2370/20 - Optical, e.g. movable lenses or mirrors
F16C2380/00 - Electrical apparatus
F16C25/06 - Ball or roller bearings
F16C27/04 - Ball or roller bearings, e.g. with resilient rolling bodies
F16C37/007 - {of rolling bearings}
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

F16F1/185 - {characterised by shape or design of individual leaves
F16F15/073 - using only leaf springs
F16F2238/022 - leaf-like, e.g. of thin, planar-like metal
F16F3/023 - {composed only of leaf springs}

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DOE Contract Number:  

AC04-94AL85000

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Nov 13

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING