DETECTING FAULTS IN ROTOR DRIVEN EQUIPMENT

• US 20190310129A1
• Filed: 06/13/2019
• Published: 10/10/2019
• Est. Priority Date: 02/23/2015
• Status: Active Grant

• Current Assignee: Machinesense LLC
• Original Assignee: Machinesense LLC
• Inventors: Pal, Biplab, Bansal, Anshul, Dutta, Sneha, Karar, Pratyay, Boral, Soumya, Dey, Abhisek
• Granted Patent: US 11,162,837 B2
• Time in Patent Office: Days
• CPC Class Codes: G01H 1/003 of rotating machines G01H1/10 takes precedence
• CPC Class Codes: G01M 13/045 Acoustic or vibration analysis

Abstract

A method and system of detecting faults in rotor driven equipment includes generating data from one or more vibration sensors communicatively coupled to the rotor driven equipment. The data from the one or more machine wearable sensors is collected onto a mobile data collector. The data is sampled at random to estimate a maximum value. Further, a sampling error may be controlled under a predefined value. The data may be analyzed through a combination of Cartesian to Spherical transformation, statistics of the entity extraction (such as variance of azimuthal angle), big data analytics engine and a machine learning engine. A fault is displayed on a user interface associated with the rotor driven equipment.

Claims

1. A method of detecting faults in a rotor driven equipment comprising:

a. generating multiple axis vibration data from one or more vibration sensors communicatively coupled to the rotor driven equipment;

b. collecting the data from the one or more machine wearable sensors onto a mobile data collector;

c. sampling, through a processor, the data at random to estimate a maximum value;

d. controlling a sampling error under a predefined value, wherein the sampling error is associated with the data;

e. analyzing the data through a combination of cartesian to spherical transformation making vibrational vectors invariant, statistics of extracted entity of one or more spherical variables, big data analytics engine and a machine learning engine; and

f. displaying on a user interface an alarm indicating a fault associated with the rotor driven equipment as determined by the data analysis performed in limitation “

e”

.

2. The method of claim 1, further comprising detecting at least one rotor driven equipment fault based on one or more computations.

3. The method of claim 2, wherein a computation engine enables the one or more computations including at least one of a series of entity extraction of vibrational data, RMS, variance and kurtosis of azimuthal angle, peak to RMS ratio, percentiles ratio, and ratio of variance for each individual vibration axis.

4. The method of claim 1, wherein the alarm is set through at least one of a rule based engine and a multi-classification machine learning engine.

5. The method of claim 1, wherein the user interface is a predictive maintenance circular gauge.

6. The method of claim 1, wherein

a. the rotor driven equipment issues include at least one of a belt tension, filter condition, abusive operation, oil level, and viscosity of oil;

b. the issues are discovered through a machine learning multi-classification; and

c. the machine learning multi-classification includes at least one of a neural network, random forest, logistical regression, and support vector machine (SVM).

7. The method of claim 1 wherein the vibrational sensor data are collected onto the mobile data collector via a communication network comprising at least one of Wi-Fi, 2G, 3G, 4G, GPRS, EDGE, Bluetooth, ZigBee, Piconet of BLE, Zwave or a combination thereof.

8. The method of claim 1, wherein the alarm indicative of a detected fault is raised over a communication network through one of a notification on the mobile application, Short Message Service (SMS), email or a combination thereof.