Abstract: A wheel and brake assembly comprising: a stator; a rotating assembly mounted around and rotatable relative to the stator about an axis A; a torque tube in fixed engagement with the stator; a stack of brake disks mounted about the torque tube, the stack of brake disks comprising alternate rotor disks and stator disks, the stator disks attached to the torque tube and the rotor disks attached to the rotating assembly; a brake actuator configured to, in response to a brake command, apply a pressing force on the stack of brake disks to cause frictional engagement between the rotor disks and the stator disks such that the stator disks prevent the rotor disks and, hence the rotating assembly, from rotating relative to the torque tube.

Abstract: A system, and associated method, for reducing oxidation of a friction disk may include a braking assembly comprising the friction disk and a coolant loop coupled to the braking assembly, with the coolant loop being configured to circulate liquid coolant from the braking assembly. That is, the coolant loop may be configured to reduce the temperature of the braking assembly, thus reducing the rate/extent of oxidation of the friction disks and potentially enabling the concentration of oxygen around the braking assembly to be reduced.

Abstract: The present disclosure provides a heat shield. The heat shield may comprise a first layer comprising a first material, a second layer radially outward of the first layer comprising a second material, and a third layer radially outward of the second layer comprising a third material, wherein the first layer is coupled to the second layer by at least one post and at least one support extending from a radially outer surface of the first layer.

Abstract: A system, and associated method, for reducing oxidation of a friction disk may include a braking assembly comprising the friction disk and a coolant loop coupled to the braking assembly, with the coolant loop being configured to circulate liquid coolant from the braking assembly. That is, the coolant loop may be configured to reduce the temperature of the braking assembly, thus reducing the rate/extent of oxidation of the friction disks and potentially enabling the concentration of oxygen around the braking assembly to be reduced.

Abstract: A system, and associated method, for reducing oxidation of a friction disk may include a braking assembly comprising the friction disk and a coolant loop coupled to the braking assembly, with the coolant loop being configured to circulate liquid coolant from the braking assembly. That is, the coolant loop may be configured to reduce the temperature of the braking assembly, thus reducing the rate/extent of oxidation of the friction disks and potentially enabling the concentration of oxygen around the braking assembly to be reduced.

Abstract: A system, and associated method, for reducing oxidation of a friction disk may include a braking assembly comprising the friction disk and a coolant loop coupled to the braking assembly, with the coolant loop being configured to circulate liquid coolant from the braking assembly. That is, the coolant loop may be configured to reduce the temperature of the braking assembly, thus reducing the rate/extent of oxidation of the friction disks and potentially enabling the concentration of oxygen around the braking assembly to be reduced.

Abstract: The present disclosure provides a heat shield. The heat shield may comprise a first layer comprising a first material, a second layer radially outward of the first layer comprising a second material, and a third layer radially outward of the second layer comprising a third material, wherein the first layer is coupled to the second layer by at least one post and at least one support extending from a radially outer surface of the first layer.

Abstract: The present disclosure provides a heat shield. The heat shield may comprise a first shield layer defining a cylindrical inner diameter surface of the heat shield, the cylindrical inner diameter surface having a radius and an axis, an air gap layer radially outward of the first shield layer, a second shield layer radially outward of the air gap layer, a first insulation layer radially outward of the second shield layer, a foil layer radially outward of the second shield layer, a second insulation layer radially outward of the foil layer, and a third shield layer radially outward of the second insulation layer.

Abstract: The present disclosure provides a heat shield. The heat shield may comprise a first shield layer defining a cylindrical inner diameter surface of the heat shield, the cylindrical inner diameter surface having a radius and an axis, an air gap layer radially outward of the first shield layer, a second shield layer radially outward of the air gap layer, a first insulation layer radially outward of the second shield layer, a foil layer radially outward of the second shield layer, a second insulation layer radially outward of the foil layer, and a third shield layer radially outward of the second insulation layer.

Abstract: A system for electrical braking of a vehicle comprises a power bus coupled to a first driver associated with a first electromechanical actuator (EMA). The power bus is also coupled to a second driver associated with a second EMA, and the first EMA and the second EMA are associated with a wheel of the vehicle. The power bus provides braking power to the first EMA via the first driver and to the second EMA via the second driver. A normal braking command interface provides a first braking signal to the first driver and a second braking signal to the second driver. An emergency/park brake interface bypasses the normal braking command interface and sends a first emergency/park braking signal to the first driver and a second emergency/park braking signal to the second driver. A sensor measures a current at a single location of the power bus that is proportional to a braking force exerted on the wheel.

Abstract: A system for electrical braking of a vehicle comprises a power bus coupled to a first driver associated with a first electromechanical actuator (EMA). The power bus is also coupled to a second driver associated with a second EMA, and the first EMA and the second EMA are associated with a wheel of the vehicle. The power bus provides braking power to the first EMA via the first driver and to the second EMA via the second driver. A normal braking command interface provides a first braking signal to the first driver and a second braking signal to the second driver. An emergency/park brake interface bypasses the normal braking command interface and sends a first emergency/park braking signal to the first driver and a second emergency/park braking signal to the second driver. A sensor measures a current at a single location of the power bus that is proportional to a braking force exerted on the wheel.

Abstract: A method includes receiving an input brake command that indicates a desired amount of braking for a vehicle. A brake control signal is then derived from the input brake command to facilitate applying a braking force to a wheel of the vehicle, and the braking force facilitates achieving the desired amount of braking for the vehicle. The method further comprises determining that data from a sensor associated with the wheel is unavailable, and then modifying the brake control signal in response to determining that the data is unavailable. The modification may be based on sensor data or controller output associated with a second wheel where data is available. Such modification facilitates the desired amount of braking for the vehicle.

Abstract: Methods for determination of pay saturation (SPAY) and water saturation (Sw) from surface seismic data use amplitude changes with angle of incidence in conjunction with rock property relationships to determine pay saturation for a variety of situations. These situations include cases where P-P data is used and anisotropy and absorption are negligible; cases where P-P data is used and anisotropic effects are important; cases where contact events are evident; and cases where P-S data is used and anisotropy and absorption are negligible.

Abstract: Vinyl chloride resins characterized by rapid dry blending with plasticizers are prepared by suspension polymerization in an aqueous medium containing a hydroxypropyl cellulose plus higher fatty acid esters of sorbitan.

Abstract: A cutter head, or excavating bucket; having a forward edge formed for penetrating earth formations, and which may be in the form of teeth; for earth working operations, especially for dredging operations, and the like, and having a vibrator mechanism associated therewith for enhancing the penetrating action of the forward edge of the cutter into an earth formation. Associated with the cutter is a crushing structure which crushes large boulders taken by the cutter down to smaller sizes. The material taken by the cutter, including the crushed boulders, can be removed from the cutter and crusher by water which is drawn therethrough with he material being delivered to a refuse place or to a further processing station.