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Modeling, Analysis and Control of Hydraulic Actuator for Forging

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Modeling, Analysis and Control of Hydraulic Actuator for Forging/ by Xinjiang Lu, Minghui Huang.
作者:	Lu, Xinjiang.
其他作者:	Huang, Minghui.
面頁冊數:	X, 228 p. 115 illus., 93 illus. in color.online resource. :
Contained By:	Springer Nature eBook
標題:	Manufactures. -
電子資源:	https://doi.org/10.1007/978-981-10-5583-6
ISBN:	9789811055836

Modeling, Analysis and Control of Hydraulic Actuator for Forging
Lu, Xinjiang.

Modeling, Analysis and Control of Hydraulic Actuator for Forging[electronic resource] /by Xinjiang Lu, Minghui Huang. - 1st ed. 2018. - X, 228 p. 115 illus., 93 illus. in color.online resource.

Part One: Background and Fundamentals -- Introduction -- Literature Survey -- Part Two: Modelling for Forging Load and Processes -- Process/Shape-Decomposition Modeling for Deformation Force -- Online Probabilistic Extreme Learning Machine for Distribution Modeling of Batch Forging Processes -- Multi-level Parameter Identification Approach -- Multi-Experiment-Data Based SVD/NN Modeling Approach -- LS-SVM Modeling Method for a Hydraulic Press Forging Process with Multiple Localized Solutions -- Hybrid Model-Set/Data Online Modeling Approach for Time-Varying Forging -- Part Three: Dynamic Analysis for Forging Processes -- Model-based Dynamic Performance Analysis -- Closed-Loop Dynamic Performance Analysis -- Part Four: Intelligent Control for Complex Forging Processes -- System decomposition based multi-level control -- Intelligent integration control for Time-Varying Forging Process -- Conclusion.

This book aims to overcome the current shortcomings of modeling, analysis and control approaches, presenting contributions in three major areas: a) Several novel modeling approaches are proposed: a process/shape-decomposition modeling method to help estimate the deformation force, an online probabilistic learning machine for the modeling of batch forging processes, several data-driven identification and modeling approaches for unknown forging processes under different work conditions. b) The model-based dynamic analysis methods is developed to derive the conditions of stability and creep. c) Several novel intelligent control methods are proposed for complex forging processes. One of the most serious problems in forging forming involves the inaccurate forging conditions, velocity and position, offered by the hydraulic actuator due to the complexity of both the deformation process of the metal work piece and the motion process of the hydraulic actuator. The current weaknesses of modeling, analysis and control approaches are summarized as follows: a) With the current modeling approaches it is difficult to model complex forging processes with unknown parameters, as they only model the dynamics in local working areas but do not effectively model unknown nonlinear systems across multiple working areas; further, they do not take the batch forging process into account, let alone its distribution modeling. b) All previous dynamic analysis studies simplify the forging system to having a single-frequency pressure fluctuation and neglect the influences of non-linear load force. Further, they fail to take the flow equation in both valves and cylinders into account. c) Conventional control approaches only consider the linear deformation force and pay no attention to sudden changes and the motion synchronization for the multi-cylinder system, making them less effective for complex, nonlinear time-varying forging processes subject to sudden changes.

ISBN: 9789811055836

Standard No.: 10.1007/978-981-10-5583-6doiSubjects--Topical Terms:

680602
Manufactures.

LC Class. No.: TS1-2301

Dewey Class. No.: 670

Modeling, Analysis and Control of Hydraulic Actuator for Forging
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505 0 $a Part One: Background and Fundamentals -- Introduction -- Literature Survey -- Part Two: Modelling for Forging Load and Processes -- Process/Shape-Decomposition Modeling for Deformation Force -- Online Probabilistic Extreme Learning Machine for Distribution Modeling of Batch Forging Processes -- Multi-level Parameter Identification Approach -- Multi-Experiment-Data Based SVD/NN Modeling Approach -- LS-SVM Modeling Method for a Hydraulic Press Forging Process with Multiple Localized Solutions -- Hybrid Model-Set/Data Online Modeling Approach for Time-Varying Forging -- Part Three: Dynamic Analysis for Forging Processes -- Model-based Dynamic Performance Analysis -- Closed-Loop Dynamic Performance Analysis -- Part Four: Intelligent Control for Complex Forging Processes -- System decomposition based multi-level control -- Intelligent integration control for Time-Varying Forging Process -- Conclusion.
520 $a This book aims to overcome the current shortcomings of modeling, analysis and control approaches, presenting contributions in three major areas: a) Several novel modeling approaches are proposed: a process/shape-decomposition modeling method to help estimate the deformation force, an online probabilistic learning machine for the modeling of batch forging processes, several data-driven identification and modeling approaches for unknown forging processes under different work conditions. b) The model-based dynamic analysis methods is developed to derive the conditions of stability and creep. c) Several novel intelligent control methods are proposed for complex forging processes. One of the most serious problems in forging forming involves the inaccurate forging conditions, velocity and position, offered by the hydraulic actuator due to the complexity of both the deformation process of the metal work piece and the motion process of the hydraulic actuator. The current weaknesses of modeling, analysis and control approaches are summarized as follows: a) With the current modeling approaches it is difficult to model complex forging processes with unknown parameters, as they only model the dynamics in local working areas but do not effectively model unknown nonlinear systems across multiple working areas; further, they do not take the batch forging process into account, let alone its distribution modeling. b) All previous dynamic analysis studies simplify the forging system to having a single-frequency pressure fluctuation and neglect the influences of non-linear load force. Further, they fail to take the flow equation in both valves and cylinders into account. c) Conventional control approaches only consider the linear deformation force and pay no attention to sudden changes and the motion synchronization for the multi-cylinder system, making them less effective for complex, nonlinear time-varying forging processes subject to sudden changes.
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