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31. 发明授权

US08396571B2 Process and system for multi-objective global optimization of maintenance schedules 有权
标题翻译：维护计划的多目标全局优化过程和系统
公开(公告)号：US08396571B2
公开(公告)日：2013-03-12
申请号：US11725934
申请日：2007-03-19
申请人： Sorin Costiner , Howard A. Winston , Jihua Wang , Alexander I. Khibnik , Ravi Rajamani , Thomas R. Matthis , Ricardo A. Benitez , Julie A. Ireland , Ellen Cohen
发明人： Sorin Costiner , Howard A. Winston , Jihua Wang , Alexander I. Khibnik , Ravi Rajamani , Thomas R. Matthis , Ricardo A. Benitez , Julie A. Ireland , Robert M. Cohen
IPC分类号： G01B3/44 , G05B13/02 , G06F15/18 , G06F19/00 , G06N5/02 , G06Q10/00 , G21C17/00
CPC分类号： G06Q10/06 , G06Q10/04
摘要： A process for optimizing maintenance work schedules for at least one engine includes the steps of retrieving at least one set of data for an engine from a computer readable storage medium; selecting at least one scheduling parameter for the engine; selecting a set of maintenance rules for the engine; selecting at least one maintenance work decision; selecting at least one objective for the engine; optimizing the at least one objective to generate at least one optimal maintenance work decision; and generating at least one optimal maintenance work schedule for the engine.
摘要翻译：用于优化至少一个引擎的维护工作计划的过程包括以下步骤：从计算机可读存储介质检索用于引擎的至少一组数据; 为引擎选择至少一个调度参数; 为引擎选择一套维护规则; 选择至少一个维护工作决定; 为发动机选择至少一个物镜; 优化所述至少一个目标以产生至少一个最佳维护工作决定; 并为发动机生成至少一个最佳维护工作进度。

32. 发明申请

US20130025348A1 AIRCRAFT DEBRIS MONITORING SENSOR ASSEMBLY 有权
标题翻译：飞机检测传感器总成
公开(公告)号：US20130025348A1
公开(公告)日：2013-01-31
申请号：US13194096
申请日：2011-07-29
申请人： Ravi Rajamani , Alexander I. Khibnik , William Donat , Rajendra K. Agrawal
发明人： Ravi Rajamani , Alexander I. Khibnik , William Donat , Rajendra K. Agrawal
IPC分类号： G01N37/00
CPC分类号： G01N15/0266 , B64D45/00 , B64D2045/009 , G01N15/0272 , G01N15/0656 , G01N2015/0046 , G01P5/165
摘要： An example aircraft debris monitoring sensor assembly includes an aircraft conduit defining a hollow core passage extending axially from an inlet opening to an outlet opening. A sensor arrangement detects debris carried by a fluid within the hollow core passage.
摘要翻译：示例性飞行器碎片监测传感器组件包括限定从入口开口至出口开口轴向延伸的中空芯通道的飞行器导管。传感器装置检测中空芯通道内的流体携带的碎屑。

33. 发明申请

US20120324987A1 IDMS SIGNAL PROCESSING TO DISTINGUISH INLET PARTICULATES 有权
标题翻译： IDMS信号处理识别入口颗粒
公开(公告)号：US20120324987A1
公开(公告)日：2012-12-27
申请号：US13168293
申请日：2011-06-24
申请人： Alexander I. Khibnik , Ravi Rajamani , Coy Bruce Wood , Rajendra K. Agrawal , William Donat
发明人： Alexander I. Khibnik , Ravi Rajamani , Coy Bruce Wood , Rajendra K. Agrawal , William Donat
IPC分类号： G01M15/14
CPC分类号： G01N15/0266 , B64D2033/022 , B64D2045/009 , F01D21/003 , F02C7/052 , G01N2015/0046
摘要： A method for operating a debris monitoring system comprises continuously sensing the passage of particulates through a gas turbine engine to produce a time-domain sensor signal. The time-domain sensor signal is Fourier transformed to produce a frequency domain sensor signal. The frequency domain sensor signal is partitioned into bins corresponding to particulate composition categories. At least one feature is identified within each bin, and is used to determine the amount of particulate flow in each particulate composition category.
摘要翻译：用于操作碎片监测系统的方法包括连续感测通过燃气涡轮发动机的颗粒通过以产生时域传感器信号。时域传感器信号被傅立叶变换以产生频域传感器信号。频域传感器信号被分割成与颗粒组成类别相对应的箱体。在每个仓内识别至少一个特征，并用于确定每个颗粒组成类别中的颗粒流量。

34. 发明授权

US07881880B2 Actuator performance monitoring system 有权
标题翻译：执行器性能监控系统
公开(公告)号：US07881880B2
公开(公告)日：2011-02-01
申请号：US12416670
申请日：2009-04-01
申请人： Ravi Rajamani , Allan J. Volponi
发明人： Ravi Rajamani , Allan J. Volponi
IPC分类号： G01B3/44
CPC分类号： G05B23/0235
摘要： A method for monitoring performance of an actuator is provided that includes the steps of: 1) determining an actuator response time constant in a control system, which actuator response time constant is representative of a task time taken by the actuator to complete a selected percentage of a task; 2) determining a rate of change of the actuator response time constant over a predetermined number of events; 3) determining a fault value indicative of when the actuator response time constant will equal or exceed an error time constant using the determined rate of change of the actuator response time constant; and 4) outputting a signal from the control system representative of the determined fault value.
摘要翻译：提供了一种用于监视致动器的性能的方法，其包括以下步骤：1）确定控制系统中的致动器响应时间常数，所述致动器响应时间常数表示致动器完成选定百分比的任务时间一个任务; 2）确定在预定数量的事件上的致动器响应时间常数的变化率; 3）使用确定的致动器响应时间常数的变化率来确定指示致动器响应时间常数何时等于或超过误差时间常数的故障值; 以及4）输出来自所述控制系统的表示所确定的故障值的信号。

35. 发明申请

US20090276387A1 HYBRID FAULT REASONING AND GUIDED TROUBLESHOOTING SYSTEM 有权
标题翻译：混合故障原因和指导的故障排除系统
公开(公告)号：US20090276387A1
公开(公告)日：2009-11-05
申请号：US12114896
申请日：2008-05-05
申请人： Michel D. Paquet , Baban V. Baliga , Ravi Rajamani , Andrew Paul Gagnon
发明人： Michel D. Paquet , Baban V. Baliga , Ravi Rajamani , Andrew Paul Gagnon
IPC分类号： G06N7/02
CPC分类号： G06N5/045
摘要： A fault reasoning system combines both a model-based reasoning approach based upon predicted root causes of a plurality of fault signals, and a case-based reasoner that looks at the actual root cause of actual cases.
摘要翻译：故障推理系统结合了基于多个故障信号的预测根本原因的基于模型的推理方法，以及查看实际情况的实际根本原因的基于案例的推理者。

36. 发明申请

US20060111871A1 Method of and system for representing unscheduled events in a service plan 审中-公开
标题翻译：在服务计划中表示非计划事件的方法和系统
公开(公告)号：US20060111871A1
公开(公告)日：2006-05-25
申请号：US10994022
申请日：2004-11-19
申请人： Howard Winston , Ravi Rajamani , Thomas Matthis , Ricardo Benitez
发明人： Howard Winston , Ravi Rajamani , Thomas Matthis , Ricardo Benitez
IPC分类号： G21C17/00
CPC分类号： G06Q10/06
摘要： A method of representing unscheduled events in a service plan includes retrieving unscheduled service event information relevant to a subject assembly and generating a service plan for the assembly that is responsive to the unscheduled service event information. A system for representing unscheduled service events in a service plan includes a computer system having means for retrieving unscheduled event information relevant to a subject assembly and means for generating a service plan for the assembly that is responsive to the unscheduled event information.
摘要翻译：在服务计划中表示非预定事件的方法包括检索与对象组件相关的非计划的服务事件信息，并且生成响应于非预定服务事件信息的组件的服务计划。用于在服务计划中表示非计划的服务事件的系统包括计算机系统，其具有用于检索与对象组件相关的非预定事件信息的装置，以及用于生成响应于所述未预定事件信息的所述组件的服务计划的装置。

37. 发明申请

US20050177467A1 Rotable inventory calculation method 有权
标题翻译：可转动库存计算方法
公开(公告)号：US20050177467A1
公开(公告)日：2005-08-11
申请号：US10763803
申请日：2004-01-23
申请人： Jihua Wang , Ravi Rajamani , Robert Tomastik , Thomas Gannon
发明人： Jihua Wang , Ravi Rajamani , Robert Tomastik , Thomas Gannon
IPC分类号： G05B19/418 , B65G61/00 , G06F19/00 , G06Q10/00 , G06F17/60
CPC分类号： G06Q10/087 , G06Q10/06315
摘要： A method for conducting a repairable inventory analysis calculates the minimum number of repairable parts to be held in inventory while still being able to satisfy the demand for spare parts even in view of uncertain repair lead times. The method uses a set of equations that relates a customer service level to arbitrary probability distribution functions of a repair lead-time and a part arrival process. The distributions are then searched to locate the optimal inventory level in the distribution.
摘要翻译：进行可修复库存分析的方法，即使考虑到不确定的维修交货时间，也可以计算出库存中可维修零件的最小数量，同时仍然能够满足备件的需求。该方法使用一组方程将客户服务水平与修复提前期和零件到达过程的任意概率分布函数相关联。然后搜索分布以定位分布中的最佳库存水平。

38. 发明授权

US06352001B1 Non-iterative method for obtaining mass flow rate 失效
标题翻译：用于获得质量流量的非迭代方法
公开(公告)号：US06352001B1
公开(公告)日：2002-03-05
申请号：US09385572
申请日：1999-08-30
申请人： Thomas Edward Wickert , Ravi Rajamani
发明人： Thomas Edward Wickert , Ravi Rajamani
IPC分类号： G01F137
CPC分类号： G01F25/0007 , G01F1/44
摘要： The present invention provides a method for calculating flow rate of a fluid using a pressure differential device, based on detected pressure and temperature upstream of and detected pressure adjacent a flow constriction of the pressure differential device, and calibration coefficients calculated from the results of a flow calibration performed on the pressure differential device. By incorporating the results of the flow calibration in the computation, a non-iterative method for obtaining mass flow rate is realized.
摘要翻译：本发明提供了一种基于检测到的压力和压力差压装置的流动压力附近的压力和温度以及邻近压力差流装置的流动压缩的压力来计算使用压差装置的流体流量的方法，以及根据流量结果计算的校准系数在压差装置上执行校准。通过在计算中结合流量校准的结果，实现了用于获得质量流量的非迭代方法。

39. 发明授权

US5857321A Controller with neural network for estimating gas turbine internal cycle parameters 失效
标题翻译：具有用于估计燃气轮机内循环参数的神经网络的控制器
公开(公告)号：US5857321A
公开(公告)日：1999-01-12
申请号：US661688
申请日：1996-06-11
申请人： Ravi Rajamani , Nicolas Wadih Chbat , Todd Alan Ashley
发明人： Ravi Rajamani , Nicolas Wadih Chbat , Todd Alan Ashley
IPC分类号： F02C9/22 , F02C9/28 , F02C9/00
CPC分类号： F02C9/28 , F02C9/22
摘要： A gas turbine control system includes a controller that is coupled to actuator systems that govern operation of the gas turbine. The controller includes a processor for generating respective actuator control signals in correspondence with a plurality of turbine operating condition signals; the controller includes at least one neural network estimator that is trained to generate an estimated turbine operating condition signal. The neural network estimator typically has one or more hidden neuron layers that are coupled together in a feedforward structure, a recurrent neural network architecture. The estimated turbine operating condition signal generated by the neural network estimator typically, but not necessarily, represents a turbine internal cycle operating parameter for which the turbine has no corresponding operating parameter sensor.
摘要翻译：燃气轮机控制系统包括耦合到控制燃气轮机的操作的致动器系统的控制器。该控制器包括一个处理器，用于产生与多个涡轮机操作条件信号对应的各个致动器控制信号; 所述控制器包括至少一个经过训练以产生估计的涡轮机运行状态信号的神经网络估计器。神经网络估计器通常具有一个或多个在前馈结构中耦合在一起的隐藏神经元层，即复现神经网络架构。由神经网络估计器生成的估计的涡轮机运行状态信号通常但不一定代表涡轮机内循环运行参数，涡轮机没有相应的运行参数传感器。

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