Goodrich Corporation

Ge Aviation Systems Limited

Todd Eric Rook

Marc Georgin

John P Swank

Marc Jean Claude Georgin

Michael Francis Michalski

Paul L Summers

Paul R Burte

Michael Kordik

John Stephen Mears

Steven Thomas Keller

Pradeep Hemant Sangli

Andrew C Walsh

Paul James Wirsch, Jr

Santosh Kumar Prasad

Ravindra Uppar

Austin Michael Cobert

Andrew Walsh

John Swank

A rotor assembly for an electric machine includes a cylindrical rotor core, a set of posts extending radially outward from the rotor core defining a set of slots between adjacent posts, a set of windings formed by conductive wire wound in the set of slots having end turns extending axially beyond the rotor core, and a retention case overlying the end turns.

Rotor assembly

A torque bar manufactured by an additive manufacturing process is provided. The torque bar may include a torque bar body made of more than one metallic material. The torque bar may also include a geometry that comprises one or more voids and one or more webs, as well as a varied geometry in the direction of a longitudinal axis. The torque bars can exhibit characteristics, such as vibration damping, tuned stiffness, and tuned bending resistance in order to enhance dynamic stability.

Torque bar and methods for making

A stator sleeve assembly for an electric machine includes a first cylindrical housing portion defining an inner radial cavity defined by at least one circumferential wall and an outer radial cavity, and a set of radial passages fluidly connecting the inner radial cavity with the outer radial cavity, and a second cylindrical housing portion defining a third cavity, the second housing portion axially spaced from the first housing portion.

Method and assembly of a stator sleeve

A stator core and method of forming a stator assembly for an electric machine, including a cylindrical stator core, a set of posts extending radially inward from the stator core defining a set of slots between adjacent posts, and a set of windings formed by conductive wire wound in a fewer than all of the set the slots, defining a first subset of wound slots and a second subset of empty slots.

Stator assembly

A stator supportfor an electric machineincludes a radial cutin a support ringthat releases hoop stress in the support ringand enables more radial displacement during heating and cold soak cycles in the stator, thereby allowing a larger range of thermal conditions for the electric machine

Stator support for an electric machine

Methods for estimating the cooling time of a brake assembly are disclosed. Methods are provided comprising receiving, by the processor, a first temperature of a brake assembly at a first time, receiving, by the processor, a second temperature of a brake assembly at a second time, wherein the second time occurs a fixed period after the first time, determining, by the processor, a temperature decay coefficient ('&#x3b1;') of the brake assembly based on the first temperature and the second temperature and calculating, by the processor, an estimated total time to cool the brake assembly to a predetermined temperature based on the first temperature, the predetermined temperature and &#x3b1;.

Brake cooling estimation methods and systems

The present disclosure provides systems for mitigating brake vibration. In various embodiments, a brake force distribution arrangement may comprise: a member in operable communication with an actuator having at least two contact surfaces such that as one of the at least two contact surfaces moves in a direction of actuation of the actuator the other moves in a direction opposite to the direction of actuation of the actuator.

Modified actuator design to improve load distribution and damping

Systems and methods are disclosed for aircraft wheels and brakes systems for use in, for example, an aircraft. In this regard, a damper for an axle may comprise a cylindrical canister defining a cavity configured to be inserted into a bore of the axle, the cavity at least partially filled with a damping material. The damper may act as a particle damper or a tuned mass damper to mitigate harmonic vibration of the axle and therefore the wheel and brake system.

Axle damper insert

Systems and methods are disclosed for aircraft wheels and brakes systems for use in, for example, an aircraft. In this regard, a damper for an axle may comprise a solid body defined by a cylindrical outside diameter (OD) surface and an elliptical inner surface configured to be inserted into a bore of the axle, the elliptical inner surface defining a void. The damper may comprise a varying thickness between the OD surface and the elliptical inner surface, the varying thickness including a minimum thickness along a major axis of the inner surface and a maximum thickness along a minor axis of the inner surface. The varying thickness may help to decouple a bending mode along the minor axis from the bending mode along the major axis.

Aircraft axle insert to mitigate vibration

A multipart torque bar is provided. Multipart torque bar may include an outer torque bar body, an inner torque bar body, a mounting hole, and a connecting end. Outer torque bar body may include a groove, wherein the inner torque bar body may removably insert within the groove. Multipart torque bars of the present disclosure can exhibit improved characteristics, such as improved vibration damping.

Multipart torque bar for vibration suppression

A stiffened torque bar is provided. Stiffened torque bar may include a torque bar body, a mounting hole, and a bolt strap. Stiffened torque bar may also comprise a first sleeve and a second sleeve. Stiffened torque bars of the present disclosure can exhibit improved desired characteristics, such as improved stiffness and vibration damping in order to enhance dynamic stability in the stiffened torque bar.

System and method for stiffened torque bar

A wheel monitoring system comprising a wheel, a bearing mechanically coupled to the wheel, an axle mechanically coupled to the bearing, and a wheel speed transducer (WST) disposed in the axle. The WST may be configured to detect vibrations. A method of monitoring a bearing is also provided and may comprise measuring a vibration of the bearing, comparing the vibration of the bearing to a predetermined vibration, and estimating a remaining useful life of the bearing.

Systems and methods for detecting wheel bearing wear with mounted accelerometers

An aircraft brake system may include an axle and a brake axle sleeve. The brake axle sleeve may have a plurality of recesses asymmetrically disposed about an inner circumference of the brake axle sleeve. The plurality of recesses may attenuate vibrations in the aircraft brake system.

Brake axle sleeve

In accordance with various embodiments, disclosed is a brake monitoring system for monitoring the health status of the brakes of an aircraft, the aircraft comprising a plurality of brakes, the brake monitoring system comprising conducting a statistical comparison of a brake temperature against a temperature data centrality value based on the temperature values of the plurality of brakes.

Growing community of inventors

Tipp City, OH, United States of America

Todd Eric Rook