Patent application number | Description | Published |
20120101775 | DIAGNOSTIC SYSTEM AND METHOD FOR MONITORING OPERATING CONDITIONS OF COMPONENTS OF A TURBINE MACHINE - A diagnostic system and method for monitoring operating conditions of turbine machine components ( | 04-26-2012 |
20130266420 | OPTICAL WEAR MONITORING - A gas turbine includes first and second parts having outer surfaces located adjacent to each other to create an interface where wear occurs. A wear probe is provided for monitoring wear of the outer surface of the first part, and includes an optical guide having first and second ends, wherein the first end is configured to be located flush with the outer surface of the first part. A fiber bundle includes first and second ends, the first end being located proximate to the second end of the optical guide. The fiber bundle includes a transmit fiber bundle comprising a first plurality of optical fibers coupled to a light source, and a receive fiber bundle coupled to a light detector and configured to detect reflected light. A processor is configured to determine a length of the optical guide based on the detected reflected light. | 10-10-2013 |
20140064326 | NOISE ROBUST TIME OF FLIGHT ESTIMATION FOR ACOUSTIC PYROMETRY - An acoustic signal traversing a hot gas is sampled at a source and a receiver and is represented in overlapping windows that maximize useable signal content. Samples in each window are processed to represented in different sparsified bins in the frequency domain. Determining a signal delay between the source and the receiver from a summation of maximum smoothed coherence transform cross-correlation values of different data windows wherein a sparseness of a mean smoothed coherence transform cross-correlation of windows is maximized. Determining a set of delay times wherein outliers are deleted to estimate a time of flight from which a temperature of the hot gas is calculated. | 03-06-2014 |
20140100798 | TURBINE BLADE FATIGUE LIFE ANALYSIS USING NON-CONTACT MEASUREMENT AND DYNAMICAL RESPONSE RECONSTRUCTION TECHNIQUES - A method dynamically reconstructing a stress and strain field of a turbine blade includes providing a set of response measurements from at least one location on a turbine blade, band-pass filtering the set of response measurements based on an upper frequency limit and a lower frequency limit, determining an upper envelope and a lower envelope of the set of response measurements from local minima and local maxima of the set of response measurements, calculating a candidate intrinsic mode function (IMF) from the upper envelope and the lower envelope of the set of response measurements, providing an N×N mode shape matrix for the turbine blade, where N is the number of degrees of freedom of the turbine blade, when the candidate IMF is an actual IMF, and calculating a response for another location on the turbine blade from the actual IMF and mode shapes in the mode shape matrix. | 04-10-2014 |
20150027211 | FLAME MONITORING OF A GAS TURBINE COMBUSTOR USING A CHARACTERISTIC SPECTRAL PATTERN FROM A DYNAMIC PRESSURE SENSOR IN THE COMBUSTOR - The state of a flame in a gas turbine engine combustor is acoustically monitored using a dynamic pressure sensor within the combustor. A spectral pattern of a dynamic pressure sensor output signal from the sensor is compared with a characteristic frequency pattern that includes information about an acoustic pattern of the flame and information about acoustic signal canceling due to reflections within the combustor. The spectral pattern may also be compared with a characteristic frequency pattern including information about a flame-out condition in the combustor. | 01-29-2015 |
20150063411 | NON-INTRUSIVE MEASURMENT OF HOT GAS TEMPERATURE IN A GAS TURBINE ENGINE - A method and apparatus for operating a gas turbine engine including determining a temperature of a working gas at a predetermined axial location within the engine. An acoustic signal is encoded with a distinct signature defined by a set of predetermined frequencies transmitted as a non-broadband signal. Acoustic signals are transmitted from an acoustic transmitter located at a predetermined axial location along the flow path of the gas turbine engine. A received signal is compared to one or more transmitted signals to identify a similarity of the received signal to a transmitted signal to identify a transmission time for the received signal. A time-of-flight is determined for the signal and the time-of-flight for the signal is processed to determine a temperature in a region of the predetermined axial location. | 03-05-2015 |
20150068294 | FLAME MONITORING OF A GAS TURBINE COMBUSTOR USING MULTIPLE DYNAMIC PRESSURE SENSORS IN MULTIPLE COMBUSTORS - The state of a flame in a subject combustor of a gas turbine engine is acoustically monitored using a dynamic pressure sensor within the subject combustor and one or more additional sensors in nearby combustors. Dynamic pressure sensor output signals from the sensors are cross correlated to identify acoustic oscillations generated by a flame in the subject combustor and received by the sensors. The cross correlation may be constrained by a maximum time delay between correlated components of the signals, based on physical characteristics. | 03-12-2015 |
20160103039 | SINGLE DYNAMIC PRESSURE SENSOR BASED FLAME MONITORING OF A GAS TURBINE COMBUSTOR - The state of a flame in a gas turbine combustor is acoustically monitored using a single dynamic pressure sensor within the combustor. A dynamic pressure sensor output signal is received from the single sensor and is processed to determine a flame status. The signal is processed by performing an autocorrelation operation to identify time-separated portions of the signal and to determine that the time-separated portions of the signal include portions indicative of acoustic oscillations emitted by the flame in the gas turbine engine combustor and received directly by the single acoustic sensor, and portions indicative of reflections. | 04-14-2016 |
Patent application number | Description | Published |
20080198748 | System and Method for Burst Traffic Smoothing for SIP Processing Elements - A system and method for burst traffic smoothing for Session Initiation Protocol (SIP) processing elements are provided. A dispatch queue management engine determines whether a received packet is a TCP or UDP packet. If the packet is a TCP packet, the packet is automatically added to the dispatch queue. If the packet is a UDP packet, a value for a drop function f is generated and a random or pseudo-random number r is generated. If r has a predetermined relationship to f, then the UDP packet is added to the dispatch queue, otherwise the UDP packet is discarded. The value for f is based on the current dispatch queue load, the network quality, the retransmission rate, and the allowable drop rate. Thus, the determination as to whether to drop UDP packets or not is configurable by an administrator and also adaptable to the current network and dispatch queue conditions. | 08-21-2008 |
20080229245 | Multiple Sorting of Columns in a Displayed Table in a User Interactive Computer Display Interface Through Sequential Radial Menus - Multi-sorting of displayed columns representative of a tabular display is carried out by displaying a table of a plurality of columns, selectively displaying a first radial menu having a plurality of sectors, each sector representative of one of the plurality of columns, enabling a user to select one of the sectors, and responsive to a user selection of a sector for displaying a second radial menu of the plurality of sectors wherein the selected one sector is disabled, e.g. eliminated. This is continued through a sequence of subsequent radial menus until the user has selected the intended set of sequential columns for the multiple sorting. | 09-18-2008 |
20090070410 | Managing Presence Information Of A Presentity - Methods, apparatus, and products for managing presence information of a presentity through a network according to a loosely-coupled network architecture style, the presentity representing a user of the network, are described that include receiving, by the presence information server, a request message to administer presence information of the presentity in a presence information document, the presence information document implemented as a markup document that includes one or more dedicated sections for presence information of the presentity, the request message identifying an action to administer presence information in the presence information document, and an identification of a dedicated section; retrieving, by the presence information server in response to the request message, the presence information document; and modifying, by the presence information server, the presence information document, including administering, in accordance with the request message, the presence information of the presentity in the presence information document. | 03-12-2009 |
20090070419 | Administering Feeds Of Presence Information Of One Or More Presentities - Methods, apparatus, and products for administering feeds of presence information of one or more presentities including creating a feed definition; adding to the feed definition one or more identifications of presentities; receiving a feed request; creating the feed, the feed including presence information for presentities identified in the feed definition; and sending a response to the feed request including the feed. | 03-12-2009 |
20110023019 | Monitoring File Access of Java Processes - A mechanism for monitoring file accesses by a process running in a Virtual Machine. File access information associated with a monitored process selected in a first view in a debugging interface is obtained from a file activity log and displayed as selectable file access events in a second view of the debugging interface, wherein each file access event represents a read or write operation performed on a file at a particular point in time by the monitoring process. An initial content of a file associated with the selected file access event and revisions made to the file by the monitored process within a defined period of time is retrieved from the file activity log upon detecting user selection of a file access event in the second view. The revisions are applied to the initial content of the file and displayed in a third view in the debugging interface. | 01-27-2011 |
20160099996 | Converged Call Flow and Web Service Application Integration Using a Processing Engine - Given a SIP call flow definition and WSDL extended with SIP/call flow interactions, a converged application integration (CAI) engine provides service-oriented application practitioners with an ability to reuse existing Web services integration techniques in a new converged application integration green space. The converged application integration engine “wraps” a pre-existing converged Web service/SIP or a SIP-only application, listens to application-specific signaling, and based on a supplied WSDL with SIP/call flow extensions, makes and accepts interaction requests using Web services. Given a SIP call flow definition, a WSDL extended with SIP/call flow interactions, and the converged application integration engine, a converged application execution (CAE) engine that greatly eases developing new converged applications. At runtime, the CAP engine “stitches” the signaling onto the decomposed servlet model by following the WSDL extended with SIP/call flow interactions. At appropriate binding points, the CAE engine invokes the listener callback interfaces. | 04-07-2016 |