Rolls-royce Deutschland Ltd & Co Kg

Rolls-royce Corporation

Rolls-royce Deutschland Ltd & Co. Kg

Lucia Ciciriello

Mark Spruce

Johannes Gabriel Bauer

Tomasz Grubba

Colin J Parrish

Greg Blake

Sebastian Nowoisky

Noushin Mokhtari Molk Abadi

Lixin Ren

Luca Fontana

Matthew J Wilson

Mateusz Grzeszkowski

Mark S King

Rafael Carvalho

Kevin Smith

Keith Laxton

Olaf Wuestefeld

Andreas Paetzold

A system includes a frame and a plurality of machines mounted on the frame, wherein each machine of the plurality of machines includes an actuator, and wherein each machine is configured to operate in a defined condition. The system further includes at least one controller configured to control the actuators so as to exert an excitation of each machine of the plurality of machines. The system further includes at least one sensor configured to measure at least one response indicator of a response of the system to the excitations of the plurality of machines. The system further includes a diagnosis system configured to receive the at least one measured response indicator.

System and method for machine diagnosis

A method and system for detecting a functional failure in a power gearbox, includes a) measuring operational data in a gas turbine engine of operational parameters dependent on power generation and power consumption of the engine or the gearbox, b) obtaining analyzed operational data including time data, angular data of rotation, frequency data and/or phase data, c) using the analyzed operational data in a comparison with stored baseline operational data to determine deviation data, d) determining time dependent trend data from the deviation data or determining a first state measured dependent on the power generation, power consumption or power regulation of the engine and measuring a second state dependent on vibrational data of the engine, e) generating a signal and/or a protocol for controlling the gearbox, and/or the engine based on the time dependent trend data, if a threshold is exceeded or based on the first or second states.

Method and system for detecting a functional failure in a power gearbox and a gas turbo engine

Embodiments of the invention are shown in the figures, where a method for manufacturing a gearbox, the method comprising: providing a predefined interval around an integer; providing a gearbox setup; determining a speed ratio of at least two components of the gearbox setup; comparing the speed ratio with the predefined interval around the integer; and manufacturing a gearbox in accordance with the gearbox setup in dependence on the comparison.

Method and system for reducing cross-shaft vibrations

A system including: a journal bearing having a carrier, a rotor arranged rotatable about a rotational axis relative to the carrier, and a fluid in a clearance between the rotor and the carrier. A sensor measures a vibration signal of the rotor. A control system is adapted to determine a pressure set point for the fluid in the clearance based on the vibration signal, and to provide control signals generated based on the pressure set point. An active device is adapted to modify the pressure of the fluid in the clearance based on the control signals.

System and method for controlling a journal bearing

Embodiments of the invention are shown in the figures, where a system for vibration detection is shown, the system comprising: one or more drivelines including a rotatable component rotatable about a rotational axis relative to another component; an electrical machine having a rotor and a stator rotatable with respect to one another, the rotor being arranged to at least one of drive and be driven by a part of the driveline, the electrical machine being adapted to provide signals indicative for at least one of a motion and a force between the rotor and the stator and a torque applied on the rotor; and an analysis unit adapted to receive the signals and to detect a vibration signature of the rotatable component with respect to the other component based on the signals.

System and method for detecting vibrations in rotating machinery

A system () for vibration management comprises a stator (); a rotor () being mounted rotatably with respect to the stator () about a rotational axis (); one or more active devices (A-C) adapted to apply forces and/or moments on the rotor () and/or on the stator (); at least two sensors () for measuring vibrational parameter values with respect to two or more different positions, particularly along the rotational axis (); and a controller () adapted to provide control signals to the one or more active devices (A-C) based on the vibrational parameter values of the at least two sensors () and on the respective position.

System for vibration management in rotating machinery

A bearing arrangement includes a shaft, at least one contact bearing and at least one non-contact bearing and a controller. The controller is configured to control a magnitude of a restoring force applied to the shaft by the non-contact bearing in accordance with a sensed parameter such that a stiffness of the shaft is modified such that one or more resonance frequencies of the shaft are moved away from one or more external forcing frequencies.

Resonance vibration control method and system

Embodiments of the invention are shown in the figures, where a method is presented for designing a component, including designing or receiving a model of the component; determining at least one mode shape of at least a portion of the model; redesigning the model based on the determined at least one mode shape to obtain a redesigned model of the component; and manufacturing the component in accordance with the redesigned model.

Mode-shaped components

A machine having a plurality of sub-assemblies, having a geometric computational model is generated for the machine, including the sub-assemblies and one or more module of machine readable code defining how vibration is communicated through said geometric model. First and second instances of the computational model are run to generate outputs of loading throughout the machine geometry as a result of the vibration of the geometric model under a simulated machine operating condition. The first and second instances respectively includes the computational model with and without inclusion of vibration induced by a control system for one or more sub-assembly of the machine. A maximum loading threshold is determined for the machine. A threshold for one or more control parameter in the control system is set based on the contribution of the vibration induced by the control system to the maximum loading threshold.

Methods and systems for controlling machine vibration

A bearing arrangement () comprises an inner support annulus (), an outer support annulus (), and a plurality of rollers () therebetween. At least one of the inner and the outer support annulus () comprises one or more radially extending rigid supports () and one or more damping sectors (). The one or more rigid supports () are circumferentially interposed between one or more damping sectors (). Each damping sector () comprises at least one damping member () comprising an elongate flexible member held rigidly at one or both ends thereof, such that vibrational movement of the inner or outer support annulus () causes bending of the elongate flexible members ().

Bearing arrangement

An electric machine coupled to rotating machinery includes a rotor and a stator, and the method of control of an electric machine and an electric machine control system. The method includes sensing one or more parameters indicative of one or more resonance conditions of the rotating machinery, and comparing the sensed parameter to a predetermined threshold to determine whether the rotating machinery is operating at the resonance condition. Where the rotating machinery is determined to be operating at the resonance condition, adjusting a magnetic field of one or both of the rotor and the stator to provide a predetermined torque to the rotating machine, to modulate the stiffness of the rotational machinery, and thereby move the resonance condition away from the current rotating machinery conditions.

Growing community of inventors

Berlin, Germany

Lucia Ciciriello