Application of Projection Pursuit Regression in the Fault Diagnose of Advanced Amphibious Assault Vehicle Hydraulic Motor Based on Applied Mechanics

2012 ◽  
Vol 485 ◽  
pp. 310-313
Author(s):  
Yu Cai Dong ◽  
Ge Hua Fan ◽  
Liang Hai Yi ◽  
Ling Zhang ◽  
Min Lin

The hydraulic motor of amphibious assault vehicle is one of the important output executive components of the hydraulic system whose performance has an important influence for the whole system. According to the high failure rate, fault detection and location problems of hydraulic system, this paper explore the relationship between the leakage of amphibious assault vehicle and each influential factor, establish the leakage predication model by projection pursuit regression method and get a better predicated effect. It has great significance for the fault diagnosis of hydraulic motor of amphibious assault vehicle.

2005 ◽  
Vol 48 (1) ◽  
pp. 47-55
Author(s):  
Li Jianlong ◽  
QI Jiaguo ◽  
Zhao Dehua ◽  
Jiang Ping ◽  
Xu Sheng

2014 ◽  
Vol 881-883 ◽  
pp. 1747-1753
Author(s):  
Wei Dong Nie ◽  
Xiao Ming Wang ◽  
Zhao Na Li ◽  
Xin Geng Li

A Projection Pursuit Regression method by using Hermite Polynomial is put forward to make modeling and forcasting of corrosion data, because of small sample of acumulation data of metal material corrosion in atmosphere, Multi-dimensional Properties and Non-orthogonality of influence factors. Analyses and prediction of atmospheric corrosion data of a metal are made by using this method. Compared with PCA+SVM method, this method improves significantly the accuration of prediction and correctness of corrosion vehavior trend. The result proves that the Hermite Polynomial Projection Pursuit Regression method has great huge advantage in data analysis of steel corrosion in atmosphere.


2014 ◽  
Vol 551 ◽  
pp. 365-369
Author(s):  
Jia Xing Du ◽  
Ping Chen ◽  
Ling Zhang ◽  
Juan Min Xiang ◽  
Hui Zhen Li

Through the relations among the torpedo velocity at tube outlet, cylinder volume, cylinder pressure and emission valve size, we adopt the projection pursuit regression method and establish the model to predict the torpedo velocity at tube outlet. Through the comparison of experiment data and model prediction, fitting accuracy of this relation model is stronger and the projection pursuit regression is an efficient method which can research the initial ballistic trajectory of ship-launched torpedoes.


1993 ◽  
Vol 5 (3) ◽  
pp. 443-455 ◽  
Author(s):  
Nathan Intrator

We present a novel classification and regression method that combines exploratory projection pursuit (unsupervised training) with projection pursuit regression (supervised training), to yield a new family of cost/complexity penalty terms. Some improved generalization properties are demonstrated on real-world problems.


2014 ◽  
Vol 533 ◽  
pp. 44-47
Author(s):  
Ling Zhang ◽  
Yu Cai Dong ◽  
Bao Hong Lu ◽  
Ge Hua Fan

Through the relation among the pressure of the torpedo launch tube, cylinder volume, cylinder pressure and emission valve size, we adopt the projection pursuit regression method and establish the model to predict the pressure of the torpedo launch tube. Through the comparison of experiment data and model prediction, fitting accuracy of this relation model is higher than that of the partial least-squares regression method and linear regression model and the projection pursuit regression is an efficient method which can research the initial ballistic trajectory of ship launched torpedoes.


2019 ◽  
Author(s):  
Rageshawari Munderia ◽  
Rajbala Singh

Social skills play an instrumental role in individuals’ life. It helps individuals to communicate and maintain social relationships. Presently, the smartphone has completely changed the mode of social communication, and social skills may play a crucial role in this regard. Thus, the aim of the present study is to investigate the association between social skills and perceived smartphone usage (both positive and negative usage). The perceived negative usage of the smartphone has been assessed in terms of smartphone addiction. Sample of the present study comprised of (n=509) adult participants. Pearson’s product moment correlation (r) and multiple regression method was employed to assess the relationship between the proposed variables. Findings of the study demonstrated that social skills are significantly related with both perceived positive usage of smartphone and smartphone addiction. Social expressivity and emotional control emerged as significant predictors for both positive usage of smartphone and smartphone addiction. The findings of the study may have important implications for bringing awareness among the individuals regarding the role of social skills for effective usage of smartphone as well as for future researches in this direction. Keywords: social skill, perceived positive smartphone usage, smartphone addiction, emotion expressivity, emotional control


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