Provided is a balancing device for a rotating body including at least one unbalance detector to measure the unbalance of the rotating body; two balancing masses to be handled along a handling circumference so as to cancel the unbalance; a position sensor to detect the mutual position of the balancing masses; and a motor to independently handle each of the balancing masses as a function of their mutual position and unbalance.

A method of determining a balancing solution for a rotating body that includes a wheel or wheel/tire assembly may include receiving balance parameters defining measured imbalance associated with the rotating body and receiving a set of constraints. At least one of the constraints may define a non-zero target correction of one of the balance parameters. The method may further include determining, via a selected optimization strategy, the balancing solution defining a correction to apply to the rotating body to achieve corrected balance parameters meeting the set of constraints.

A method of determining a balancing solution for a rotating body that includes a wheel or wheel/tire assembly may include receiving balance parameters defining measured imbalance associated with the rotating body and receiving a set of constraints. At least one of the constraints may define a non-zero target correction of one of the balance parameters. The method may further include determining, via a selected optimization strategy, the balancing solution defining a correction to apply to the rotating body to achieve corrected balance parameters meeting the set of constraints.

An apparatus for applying weight material onto a wheel may include a conveyor assembly, upper and lower severing-head assemblies, and upper and lower control arms. The severing-head assemblies may be mounted above and below the conveyor assembly and may include a housing, a severing device and a dispensing mechanism. The dispensing mechanism may position the weight material from a source relative to the severing device. The severing device may separate a predetermined amount of weight material from a source. The control arms may be movably mounted above and below the conveyor assembly and have weight-application tools configured to transfer the predetermined amounts of weight material from the severing-head assemblies to locations on the wheel.

An apparatus for applying weight material onto a wheel may include a conveyor assembly, upper and lower severing-head assemblies, and upper and lower control arms. The severing-head assemblies may be mounted above and below the conveyor assembly and may include a housing, a severing device and a dispensing mechanism. The dispensing mechanism may position the weight material from a source relative to the severing device. The severing device may separate a predetermined amount of weight material from a source. The control arms may be movably mounted above and below the conveyor assembly and have weight-application tools configured to transfer the predetermined amounts of weight material from the severing-head assemblies to locations on the wheel.

A rotor balancing method for a gas turbine on a balancing machine, includes performing a base run by running the rotor at an intended balance speed and measuring the vibrations at a first pedestal; carrying out partial balancing; performing a first influence run by fitting a first balancing weight to a first correction plane in order to reduce vibrations at the first pedestal; performing a second influence run by fitting a first calibration weight to a second correction plane, running the rotor at the intended balance speed and measuring the vibrations at the first pedestal and the second pedestal, and removing the first calibration weight; and carrying out final balancing of the rotor by fitting a final balancing weight to the first correction plane and a second balancing weight to the second correction plane dependent on vibrations measured as part of the first influence run and the second influence run.

A rotor balancing method for a gas turbine on a balancing machine, includes performing a base run by running the rotor at an intended balance speed and measuring the vibrations at a first pedestal; carrying out partial balancing; performing a first influence run by fitting a first balancing weight to a first correction plane in order to reduce vibrations at the first pedestal; performing a second influence run by fitting a first calibration weight to a second correction plane, running the rotor at the intended balance speed and measuring the vibrations at the first pedestal and the second pedestal, and removing the first calibration weight; and carrying out final balancing of the rotor by fitting a final balancing weight to the first correction plane and a second balancing weight to the second correction plane dependent on vibrations measured as part of the first influence run and the second influence run.

An unbalance detection device for detecting unbalance of a rotor of a turbo-cartridge which includes the rotor including a turbine wheel and a compressor wheel coupled via a rotational shaft and a bearing housing accommodating a bearing which supports the rotor rotatably, includes: a turbine-side housing member accommodating the turbine wheel; a compressor-side housing member accommodating the compressor wheel; a support mechanism configured to nip and support the turbo-cartridge from both sides by pressing at least one of the turbine-side housing member or the compressor-side housing member toward the turbo-cartridge; a vibration insulator interposed in each of a gap between the turbine-side housing member and the turbo-cartridge and a gap between the compressor-side housing member and the turbo-cartridge; and a vibration sensor installed so as to be contactable with the bearing housing, the vibration sensor being capable of detecting vibration upon rotation of the rotor.

An unbalance detection device for detecting unbalance of a rotor of a turbo-cartridge which includes the rotor including a turbine wheel and a compressor wheel coupled via a rotational shaft and a bearing housing accommodating a bearing which supports the rotor rotatably, includes: a turbine-side housing member accommodating the turbine wheel; a compressor-side housing member accommodating the compressor wheel; a support mechanism configured to nip and support the turbo-cartridge from both sides by pressing at least one of the turbine-side housing member or the compressor-side housing member toward the turbo-cartridge; a vibration insulator interposed in each of a gap between the turbine-side housing member and the turbo-cartridge and a gap between the compressor-side housing member and the turbo-cartridge; and a vibration sensor installed so as to be contactable with the bearing housing, the vibration sensor being capable of detecting vibration upon rotation of the rotor.

An apparatus and method for use with a vehicle wheel balancing system (100) to obtain non-contact measurements of dimensions on a wheel assembly (200) secured on a spindle shaft (104), together with identification of, and distances to, operator-selected locations on various surfaces of a wheel assembly 200.