Techniques are directed to utilizing a break-in assembly to break-in a gear box. The break-in assembly includes a gear box support to support the gear box. The break-in assembly further includes a drive apparatus coupled with the gear box support, the drive apparatus being constructed and arranged to drive the gear box while the gear box is supported by the gear box support. The break-in assembly further includes a loading apparatus disposed in a fixed position relative to the gear box support, the loading apparatus being constructed and arranged to apply loading to the gear box while the drive apparatus drives the gear box. Accordingly, the gear box may be installed on the break-in assembly, broken in during a gear box break-in period while the gear box is installed on the break-in assembly, removed from the break-in assembly, and installed on a water vessel.

Techniques are directed to utilizing a break-in assembly to break-in a gear box. The break-in assembly includes a gear box support to support the gear box. The break-in assembly further includes a drive apparatus coupled with the gear box support, the drive apparatus being constructed and arranged to drive the gear box while the gear box is supported by the gear box support. The break-in assembly further includes a loading apparatus disposed in a fixed position relative to the gear box support, the loading apparatus being constructed and arranged to apply loading to the gear box while the drive apparatus drives the gear box. Accordingly, the gear box may be installed on the break-in assembly, broken in during a gear box break-in period while the gear box is installed on the break-in assembly, removed from the break-in assembly, and installed on a water vessel.

A method for identifying gear tooth numbers in a gearbox using data obtained from a vibration measuring device delivered to a data acquisition device and data delivered by a user to a computer device, comprising: processing data delivered by a user to the computer device, where the data comprises a gearbox ratio and a number of stages of a gearbox for calculating a potential gear tooth combination in each stage of a gearbox, calculating frequencies of characteristic features for each potential tooth combination using the data delivered at the processing data, measuring vibration signals of the gearbox, calculating a frequency spectrum from measured data delivered at the measuring, determining an amplitude of components, of the frequency spectrum delivered at the calculating a frequency spectrum at frequencies of characteristic features for each potential tooth combination delivered at the calculating frequencies of characteristic features.

A method for identifying gear tooth numbers in a gearbox using data obtained from a vibration measuring device delivered to a data acquisition device and data delivered by a user to a computer device, comprising: processing data delivered by a user to the computer device, where the data comprises a gearbox ratio and a number of stages of a gearbox for calculating a potential gear tooth combination in each stage of a gearbox, calculating frequencies of characteristic features for each potential tooth combination using the data delivered at the processing data, measuring vibration signals of the gearbox, calculating a frequency spectrum from measured data delivered at the measuring, determining an amplitude of components, of the frequency spectrum delivered at the calculating a frequency spectrum at frequencies of characteristic features for each potential tooth combination delivered at the calculating frequencies of characteristic features.

A vehicle control system for optimizing the energy consumption of a vehicle over the vehicle lifetime. The vehicle control system includes: a rechargeable electric battery; a mechanical component; and a processing circuitry configured to cause the vehicle control system to: determine a battery wear value of the rechargeable electric battery; determine a mechanical component wear value of the mechanical component; and determine a target temperature value of the rechargeable electric battery based on the battery wear value and the mechanical component wear value.

Systems and methods for in-situ monitoring of gearbox are provided. An example system includes a mounting plate coupled to a component within the gearbox and a transducer array having a plurality of piezoelectric transducers disposed thereon to ultrasonically obtain diagnostic information about one or more components in the gearbox. The plurality of piezoelectric transducers are in contact with a surface of one or more mechanical components within the gearbox. The system includes circuitry, at least a portion of which is mounted inside the gearbox, electrically couplable to the transducer array, the circuitry configured to direct an excitation signal to a selected piezoelectric transducer of the plurality of piezoelectric transducers, and direct a response received from one or more of the plurality of piezoelectric transducers in proximity to the selected piezoelectric transducer toward a processor programmed or configured to determine gearbox diagnostic information therefrom.

Systems and methods for in-situ monitoring of gearbox are provided. An example system includes a mounting plate coupled to a component within the gearbox and a transducer array having a plurality of piezoelectric transducers disposed thereon to ultrasonically obtain diagnostic information about one or more components in the gearbox. The plurality of piezoelectric transducers are in contact with a surface of one or more mechanical components within the gearbox. The system includes circuitry, at least a portion of which is mounted inside the gearbox, electrically couplable to the transducer array, the circuitry configured to direct an excitation signal to a selected piezoelectric transducer of the plurality of piezoelectric transducers, and direct a response received from one or more of the plurality of piezoelectric transducers in proximity to the selected piezoelectric transducer toward a processor programmed or configured to determine gearbox diagnostic information therefrom.

A computer-implemented method analyzes periodic information in digital vibration data associated with a machine. The method involves generating a spectral periodic information plot (PIP) based on the digital vibration data, and locating amplitude peaks in the PIP at frequencies associated with fundamental frequencies of interest. Peaks occurring at fundamental fault frequencies and at related harmonic frequencies are removed from the PIP, while retaining energy values associated with the removed peaks. Remaining peaks in the PIP are classified as synchronous periodic peaks and non-synchronous periodic peaks. The remaining peaks in the PIP are graphically plotted along with the fault frequencies and related harmonic frequencies in different colors or different line styles on a display device to identify different groups of frequencies of interest. The method implements an algorithm that locates peaks in the PIP at frequencies associated with the fundamental frequencies of interest even though frequencies of the located peaks do not precisely match the fundamental frequencies of interest.

A computer-implemented method analyzes periodic information in digital vibration data associated with a machine. The method involves generating a spectral periodic information plot (PIP) based on the digital vibration data, and locating amplitude peaks in the PIP at frequencies associated with fundamental frequencies of interest. Peaks occurring at fundamental fault frequencies and at related harmonic frequencies are removed from the PIP, while retaining energy values associated with the removed peaks. Remaining peaks in the PIP are classified as synchronous periodic peaks and non-synchronous periodic peaks. The remaining peaks in the PIP are graphically plotted along with the fault frequencies and related harmonic frequencies in different colors or different line styles on a display device to identify different groups of frequencies of interest. The method implements an algorithm that locates peaks in the PIP at frequencies associated with the fundamental frequencies of interest even though frequencies of the located peaks do not precisely match the fundamental frequencies of interest.

Provided is a sensor that can appropriately sense the amount of abrasion powder (conductive substance) in a mechanical device of any size, and thereby to provide a sensor that can be generally used for preventive maintenance of any mechanical parts. The sensor includes a first electrode and a second electrode. A voltage is applied between the first electrode and the second electrode to accumulate conductive substance between the first and second electrodes in order to sense a decrease in electric resistance between the first and second electrodes. The distance between the first electrode and the second electrode is adjustable.