語系:
繁體中文
English
說明(常見問題)
回圖書館首頁
手機版館藏查詢
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
Modeling, estimation, and control of...
~
Ahn, Seokyoung.
FindBook
Google Book
Amazon
博客來
Modeling, estimation, and control of electroslag remelting process.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Modeling, estimation, and control of electroslag remelting process./
作者:
Ahn, Seokyoung.
面頁冊數:
193 p.
附註:
Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 1122.
Contained By:
Dissertation Abstracts International66-02B.
標題:
Engineering, Mechanical. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3165096
ISBN:
0542010321
Modeling, estimation, and control of electroslag remelting process.
Ahn, Seokyoung.
Modeling, estimation, and control of electroslag remelting process.
- 193 p.
Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 1122.
Thesis (Ph.D.)--The University of Texas at Austin, 2005.
Electroslag Remelting (ESR) is used widely throughout the specialty metals industry to produce superalloy and special steel cast ingots. High quality ESR casting requires that the electrode melting rate be controlled at all times during the process. This is especially difficult when process conditions are such that the temperature distribution in the electrode has not achieved, or has been driven away from, steady state. This condition is encountered during the beginning and closing stages of the ESR process and also during some process disturbances such as when the melt zone passes through a transverse crack. To address these transient melting situations, a new method of ESR melt rate control has been developed that incorporates an accurate, reduced-order melting model to continually estimate the temperature distribution in the electrode. The related state variables are estimated by the observer algorithms. Due to the highly nonlinear characteristics of the process, more sophisticated estimators than the Kalman filter are proposed. The unscented Kalman filter (UKF) based on the unscented transform and the particle filtering technique were chosen for possible candidates and applied in the controller design. During the highly transient periods during melting, the UKF showed the best performance for controlling the melt rate. Particle filtering can deal with non-Gaussian noises and the accuracy is totally based on the number of the Monte Carlo runs. Unfortunately, the particle filter is relatively slow in the real-time applications for controlling the ESR process with current computer technology.
ISBN: 0542010321Subjects--Topical Terms:
783786
Engineering, Mechanical.
Modeling, estimation, and control of electroslag remelting process.
LDR
:02534nmm 2200289 4500
001
1847906
005
20051128082913.5
008
130614s2005 eng d
020
$a
0542010321
035
$a
(UnM)AAI3165096
035
$a
AAI3165096
040
$a
UnM
$c
UnM
100
1
$a
Ahn, Seokyoung.
$3
1935933
245
1 0
$a
Modeling, estimation, and control of electroslag remelting process.
300
$a
193 p.
500
$a
Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 1122.
500
$a
Supervisor: Joseph J. Beaman.
502
$a
Thesis (Ph.D.)--The University of Texas at Austin, 2005.
520
$a
Electroslag Remelting (ESR) is used widely throughout the specialty metals industry to produce superalloy and special steel cast ingots. High quality ESR casting requires that the electrode melting rate be controlled at all times during the process. This is especially difficult when process conditions are such that the temperature distribution in the electrode has not achieved, or has been driven away from, steady state. This condition is encountered during the beginning and closing stages of the ESR process and also during some process disturbances such as when the melt zone passes through a transverse crack. To address these transient melting situations, a new method of ESR melt rate control has been developed that incorporates an accurate, reduced-order melting model to continually estimate the temperature distribution in the electrode. The related state variables are estimated by the observer algorithms. Due to the highly nonlinear characteristics of the process, more sophisticated estimators than the Kalman filter are proposed. The unscented Kalman filter (UKF) based on the unscented transform and the particle filtering technique were chosen for possible candidates and applied in the controller design. During the highly transient periods during melting, the UKF showed the best performance for controlling the melt rate. Particle filtering can deal with non-Gaussian noises and the accuracy is totally based on the number of the Monte Carlo runs. Unfortunately, the particle filter is relatively slow in the real-time applications for controlling the ESR process with current computer technology.
590
$a
School code: 0227.
650
4
$a
Engineering, Mechanical.
$3
783786
650
4
$a
Engineering, Metallurgy.
$3
1023648
650
4
$a
Engineering, Materials Science.
$3
1017759
690
$a
0548
690
$a
0743
690
$a
0794
710
2 0
$a
The University of Texas at Austin.
$3
718984
773
0
$t
Dissertation Abstracts International
$g
66-02B.
790
1 0
$a
Beaman, Joseph J.,
$e
advisor
790
$a
0227
791
$a
Ph.D.
792
$a
2005
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3165096
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9197420
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入