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Methods, apparatus and computer readable storage mediums for model-based diagnosis of gearboxes

A gear box, model technology, applied in complex mathematical operations, instruments, electrical testing/monitoring, etc., can solve problems such as no solution

Active Publication Date: 2011-04-13
INSIGHT ANALYTICS SOLUTIONS HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is especially true in the field of wind turbine gearboxes, however there is currently no suitable solution for this

Method used

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  • Methods, apparatus and computer readable storage mediums for model-based diagnosis of gearboxes
  • Methods, apparatus and computer readable storage mediums for model-based diagnosis of gearboxes
  • Methods, apparatus and computer readable storage mediums for model-based diagnosis of gearboxes

Examples

Experimental program
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Embodiment Construction

[0045] According to one aspect of the invention, a model-based approach is used to determine sensor locations in or on a gearbox, drive train or generator of a geared machine such as a wind turbine. The sensors can be end-of-line test sensors, or condition monitoring sensors.

[0046] End-of-line test sensors include sensors that are placed in or on the gearbox and used immediately after the gearbox or driveline is manufactured. End-of-line test sensors can be used to determine the residuals as well as specific gearbox models, details are described in the following paragraphs.

[0047] Condition monitoring sensors include those placed in or on a gearbox or driveline to monitor the forces and moments acting on the gearbox or driveline over the operating life. Condition monitoring sensors can be used to predict damage to components in gearboxes or drivetrains and thus their lifespan.

[0048] The sensors are positioned such that they are able to obtain an optimal amount of inf...

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Abstract

The invention relates to the diagnosis of faults and damage in a gearbox in order to predict the operational life of a gearbox. An end of line test is performed to infer information on each gearbox on the production line. A highly detailed model of the gearbox is created to determine the optimal sensor positions for the end-of-line test so that the test can discriminate between different types of manufacturing variation. This information is then used to construct a unique, highly detailed model for each gearbox. During operation, forces and moments acting on the gearbox are measured at regular intervals and the model is used to continuously update a prediction of the total damage on each gearbox component. The probability of failure in a given time period is then calculated. An existing condition monitoring system approach such as vibration analysis may be used in parallel with the model-based diagnosis. The overall probability of failure for a required lifetime is calculated and, if necessary, operation is limited to provide a required probability of failure in a given time period.

Description

technical field [0001] Embodiments of the present invention relate to a gearbox fault diagnosis and condition monitoring system for a gearbox. Background technique [0002] It is common for gearboxes to break down during use, involving high repair costs. Continuous monitoring of the gearbox condition enables the early identification of possible faults. This alerts the user or operator, enabling them to take remedial action before a costly or catastrophic failure occurs. [0003] An example of a gearbox that could benefit from condition monitoring is the gearbox in a wind turbine. During operation, the fan is subjected to loads acting on its structure and on the rotor blades. These loads can be applied in any direction, and the loads on the wind turbine may not be symmetrical. Thus the load on the rotor blade hub may be a force in any direction and a moment about any axis. These forces and moments cause deformation of the internal components of the gearbox, which affects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0283G05B23/0254G05B19/18G05B23/02G06F17/10
Inventor S·Y·潘J·K·考尔塔特
Owner INSIGHT ANALYTICS SOLUTIONS HLDG LTD
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