Chen-Keat
Teresa Chen-Keat, Niskayuna, NY US
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20150041119 | SENSING MAGNETIZED PORTIONS OF A WELLHEAD SYSTEM TO MONITOR FATIGUE LOADING - A wellhead assembly having a tubular magnetized in at least one selected location, and a sensor proximate the magnetized location that monitors a magnetic field from the magnetized location. The magnetic field changes in response to changes in mechanical stress of the magnetized location, so that signals from the sensor represent loads applied to the tubular. Analyzing the signals over time provides fatigue loading data useful for estimating structural integrity of the tubular and its fatigue life. Example tubulars include a low pressure housing, a high pressure housing, conductor pipes respectively coupled with the housings, a string of tubing, a string of casing, housing and tubing connections, housing and tubing seals, tubing hangers, tubing risers, and other underwater structural components that require fatigue monitoring, or can be monitored for fatigue. | 02-12-2015 |
Teresa Tian Chen-Keat, Niskayuna, NY US
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20110117231 | FIBER PLACEMENT SYSTEM AND METHOD WITH INLINE INFUSION AND COOLING - A fiber placement system comprises a resin impregnation assembly for applying a resin to one or more fiber tows and for infusing the fiber tows with the resin to form one or more inline resin-infused fiber tows. The fiber placement system further includes a fiber placement head comprising at least one cooler configured to receive and cool the in-line resin-infused fiber tows from the resin impregnation assembly. The fiber placement head further includes at least one cutter assembly configured to receive and cut the cooled resin-infused fiber tows and a compaction assembly configured to receive and compact the cut fiber tows onto a tool. A fiber placement method is also provided. | 05-19-2011 |
Teresa Tianshu Chen-Keat, Niskayuna, NY US
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20150106062 | SYSTEM AND METHODS OF GENERATING A COMPUTER MODEL OF COMPOSITE COMPONENT - A computer-implemented method for generating a computer model of a composite component includes offsetting a projected ply boundary curve outwardly along a base surface by a ply drop distance to define an offset ply boundary curve. Moreover, the method includes defining a ply region of the base surface, wherein ply region includes an area of the base surface that is interior the ply boundary curve. A ply drop region is defined, wherein the ply drop region includes another area of the base surface that is exterior the ply boundary curve and interior the offset ply boundary curve. The method includes generating a point cloud relative to the base surface, wherein the point cloud comprises a plurality of reference points and generating a ply surface using each reference point of the point cloud to facilitate generating a manufacturing lay-up sequence for the plurality of plies. | 04-16-2015 |
Teresa Tiashu Chen-Keat, Niskayuna, NY US
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20140352838 | FIBER PREFORM ARCHITECTURE FOR COMPOSITE ARTICLES AND METHOD OF FABRICATION - A fiber preform architecture and method of making, including a plurality of fiber bands. Each band of the plurality of fiber bands is placed at a time, at a predetermined position and orientation, to generate an interwoven and interlocking pattern between the fiber bands. Each of the plurality of fiber bands is formed of a plurality of fiber tows, positioned side by side at a predetermined spacing to define one or more gaps between each tow in the fiber band and define a secondary based interleaving within each of the fiber bands. The plurality of fiber bands are interwoven in an in-plane and out-of-plane orientation by interleaving each of the plurality of fiber bands with one or more of the plurality of fiber bands previously laid down and not in a common plane. The plurality of fiber bands include three or more different orientation angles and provide uniformity in coverage. | 12-04-2014 |