Caterpillar Inc.

Chunhui Pan

Yanchai Zhang

Xuefei Hu

Lauritz Phillip Pillers

Zhaoxu Dong

Yong Sun

Wenming Zhao

John Gates

Ashok Rajendran

Chijie Lin

Nathan J Wieland

Shiferaw Damtie Beyene

Daojie Zhang

Mingang Wang

Nimesh Akalanka Jayakody

An electronic control module (ECM) on-board a machine executes a reduced-order model configured to generate virtual sensor data associated with a machine component based on sensor data measured by actual sensors. The ECM can also execute a machine learning model configured to generate offset data for the sensor data and/or the virtual sensor data, based on operating conditions, an age of the machine component, and/or other factors that the reduced-order model may not consider. The sensor data and/or the virtual sensor data, adjusted based on the offset data, can indicate whether the machine component has failed or is predicted to fail at a future point in time, and/or a remaining usable life of the machine component.

On-board machine component failure detection

A rig management system is disclosed. The rig management system may be configured to receive vibration data from a set of sensors installed on one or more elements of a hydraulic fracturing rig. The rig management system may be configured to perform a first processing of the vibration data utilizing a moving window technique to identify a possible failure of a set of bearings. The rig management system may be configured to perform a second processing utilizing a set of processing techniques after identifying the possible failure of the set of bearings. The rig management system may be configured to determine that the possible failure is an actual failure based on a result of performing the second processing. The rig management system may be configured to perform an action after determining that the possible failure is the actual failure.

Bearing failure detection in a hydraulic fracturing rig

The present disclosure is directed to a computer-implemented method for modeling a mounting assembly having a mounting strap configured to couple a component to a bracket. The method includes modeling a loosened configuration of the mounting strap, wherein the loosened configuration provides a first substantially continuous curvature of portions of the mounting strap engaged with the bracket and the component. The method also includes applying simulated stresses to the mounting strap in the loosened configuration and outputting failure mode information of the mounting strap based on the simulated stresses on the mounting strap.

Method for modeling a mounting assembly and a mounting assembly

A tool assembly (), for example a hydraulic or pneumatic hammer assembly, comprises a housing () defining a chamber (), a reciprocating work tool () arranged in the chamber for cyclical movement in a work stroke and a return stroke, and a tool retention member () arranged to restrain the work tool at the end of the work stroke. The tool assembly () includes a shock absorber arranged to absorb impact from the work tool at the end of a stroke. The shock absorber comprises an annular resilient flange (), which may be cantilevered from the tool retention member () to absorb impact at the end of the work stroke or may be provided on a bushing () arranged to absorb impact at the end of the return stroke. The shock absorbing flange reduces the transmission of shocks into the tool assembly, thereby providing increased life for tool assembly components.

Shock absorber for a reciprocating tool assembly

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Dunlap, IL, United States of America

Chunhui Pan