Accession Number : AD1030161


Title :   Modeling of Engine Parameters for Condition-Based Maintenance of the MTU Series 2000 Diesel Engine


Descriptive Note : Technical Report


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA MONTEREY United States


Personal Author(s) : Yue,Siew P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1030161.pdf


Report Date : 01 Sep 2016


Pagination or Media Count : 89


Abstract : Condition-based maintenance (CBM) entails performing maintenance only when needed to save on resources and cost. Formulating a model that reflects the behavior of the marine diesel engine in its normal operating conditions would aid in making predictions of the behavior of a condition monitoring parameter. Modeling for CBM is a data-dependent process. Data acquisition, processing, and analysis are required for modeling the behavior of the normal operating conditions of the diesel engine. This thesis leverages on existing data collected through sensors on a diesel engine to describe these conditions using regression analysis. The proposed data selection criteria ensure that data used for modeling are suitable. To model the behavior of the engine, an autoregressive distributed lag (ARDL) time series model of engine speed and exhaust gas temperature is derived. The lag length for ARDL is determined by whitening of residuals using the autocorrelation function. Due to non-normality of the residuals, a nonparametric quantile regression approach is adopted, and the derived model allows us to predict the parameter (exhaust gas temperature) that we consider.


Descriptors :   diesel engines , regression analysis , failure mode and effect analysis , systems engineering , acquisition , engineering , exhaust gases , maintenance , propulsion systems , shipbuilding , REGRESSION ANALYSIS


Subject Categories : Reciprocating and Rotating Engines
      Marine Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE