公开(公告)号：US10288548B2

公开(公告)日：2019-05-14

申请号：US14689467

申请日：2015-04-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Andre A. Silva ,  Nayeff A. Najjar ,  Shalabh Gupta ,  Paul M. D'Orlando ,  Rhonda Dawn Walthall

IPC: G01N17/00 ,  G01M15/04 ,  F28F27/00 ,  G01N25/18

Abstract: A method and apparatus for estimating a fouling state of a heat exchanger of an aircraft. Training sensor measurements are obtained of a parameter related to operation of the heat exchanger and a wavelet transform is applied to the training sensor measurements to obtain wavelet data. Data reduction is performed on the wavelet data to obtain representative features indicative of the training sensor measurements. A classifier is then trained to assign suitable fouling classes to the representative features. The trained classifier is used on testing sensor measurements from the heat exchanger to assign a fouling class to the testing sensor measurements in order to estimate the fouling state of the heat exchanger.

公开(公告)号：US20160305865A1

公开(公告)日：2016-10-20

申请号：US14689467

申请日：2015-04-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Andre A. Silva ,  Nayeff A. Najjar ,  Shalabh Gupta ,  Paul M. D'Orlando ,  Rhonda Dawn Walthall

IPC: G01N17/00 ,  F28F27/00

CPC classification number: G01N17/008 ,  F28F27/00

Abstract: A method and apparatus for estimating a fouling state of a heat exchanger of an aircraft. Training sensor measurements are obtained of a parameter related to operation of the heat exchanger and a wavelet transform is applied to the training sensor measurements to obtain wavelet data. Data reduction is performed on the wavelet data to obtain representative features indicative of the training sensor measurements. A classifier is then trained to assign suitable fouling classes to the representative features. The trained classifier is used on testing sensor measurements from the heat exchanger to assign a fouling class to the testing sensor measurements in order to estimate the fouling state of the heat exchanger.

Abstract translation: 一种用于估计飞行器的热交换器的结垢状态的方法和装置。 获得与热交换器操作有关的参数的训练传感器测量，并将小波变换应用于训练传感器测量以获得小波数据。 对小波数据执行数据减少以获得指示训练传感器测量的代表性特征。 然后对分类器进行培训，以便为代表性特征分配合适的污垢等级。 经过训练的分级器用于测试来自热交换器的传感器测量，以将污垢等级分配给测试传感器测量值，以便估计热交换器的结垢状态。