Model-based and Experimental Analysis of Transient Electrodialysis Processes

2016 ◽  
Author(s):  
Matthias Johannink
Keyword(s):  
Experimental Analysis ◽  
Process Model ◽  
Model Development ◽  
Systematic Investigation ◽  
Differential Algebraic Equations ◽  
Transport Processes ◽  
Mechanistic Modeling ◽  
Algebraic Equations ◽  
Model Based ◽  
Dynamic Description

This thesis is concerned with the integration of a model-based and experimental analysis for the systematic investigation of transient electrodialysis (ED) processes. In this context a mechanistic process model for transient ED systems is developed which is based on a rigorous dynamic description of the underlying ionic transport processes. Important requirements for a systematic model development are elaborated in a systematic manner. This includes the development of a new method for the characterization of partial differential-algebraic equations and an experimental sensitivity analysis of a transient electrodialysis system. The findings can easily be generalized to related electrochemical processes such as fuel cells or batteries. By this means this work provides important results for scientist and engineers in the fields of mechanistic modeling, electromembrane processes and electrochemical systems. ...

scholarly journals Modeling and PDC fuzzy control of planar parallel robot

2017 ◽  
Vol 14 (1) ◽  
pp. 172988141668711
Author(s):  
Benyamine Allouche ◽  
Antoine Dequidt ◽  
Laurent Vermeiren ◽  
Michel Dambrine
Keyword(s):  
Structural Characteristics ◽  
Differential Algebraic Equations ◽  
Parallel Robots ◽  
Linear Matrix ◽  
Parallel Mechanisms ◽  
Algebraic Equations ◽  
Differential Algebraic Equation ◽  
Trajectory Tracking Control ◽  
Model Based ◽  
Takagi Sugeno

Many works in the literature have studied the kinematical and dynamical issues of parallel robots. But it is still difficult to extend the vast control strategies to parallel mechanisms due to the complexity of the model-based control. This complexity is mainly caused by the presence of multiple closed kinematic chains, making the system naturally described by a set of differential–algebraic equations. The aim of this work is to control a two-degree-of-freedom parallel manipulator. A mechanical model based on differential–algebraic equations is given. The goal is to use the structural characteristics of the mechanical system to reduce the complexity of the nonlinear model. Therefore, a trajectory tracking control is achieved using the Takagi-Sugeno fuzzy model derived from the differential–algebraic equation forms and its linear matrix inequality constraints formulation. Simulation results show that the proposed approach based on differential–algebraic equations and Takagi-Sugeno fuzzy modeling leads to a better robustness against the structural uncertainties.

scholarly journals A Generalized State-Space Aeroservoelastic Model Based on Tangential Interpolation

Aerospace ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 9 ◽  
Author(s):  
David Quero ◽  
Pierre Vuillemin ◽  
Charles Poussot-Vassal
Keyword(s):  
State Space ◽  
Reference Model ◽  
Differential Algebraic Equations ◽  
Summation Method ◽  
Algebraic Equations ◽  
Minimal Order ◽  
New Approach ◽  
Model Based ◽  
Generalized State Space ◽  
Generalized State

In this work, a new approach for the generation of a generalized state-space aeroservoelastic model based on tangential interpolation is presented. The resulting system of differential algebraic equations (DAE) is reduced to a set of ordinary differential equations (ODE) by residualization of the non-proper part of the transfer function matrix. The generalized state-space is of minimal order and allows for the application of the force summation method (FSM) for the aircraft loads recovery. Compared to the classical rational function approximation (RFA) approach, the presented method provides a minimal order realization with exact interpolation of the unsteady aerodynamic forces in tangential directions, avoiding any selection of poles (lag states). The new approach is applied first for the generation of an aerodynamic model for the bidimensional unsteady incompressible flow in the time domain. Next, an application on the generation of an aeroservoelastic model for loads evaluation of the flutter reduced order assessment (FERMAT) model under atmospheric disturbances is done, showing an excellent agreement with the reference model in the frequency domain. The proposed aeroservoelastic model of minimal order is suited for loads analysis and multivariable control design, and an application to a gust loads alleviation (GLA) strategy is shown.

scholarly journals PENGEMBANGAN BUKU PANDUAN MODEL BLENDED LEARNING BERBASIS WEBBLOG

PRASI ◽  
2020 ◽  
Vol 15 (01) ◽  
pp. 44
Author(s):  
Jajang Suryana
Keyword(s):  
Blended Learning ◽  
Process Model ◽  
Model Development ◽  
Learning Model ◽  
Learning Activities ◽  
Development Research ◽  
Visual Communication Design ◽  
Model Based ◽  
Research Activities ◽  
Evaluation Of Learning

ABSTRAK              Penelitian ini adalah penelitian pengembangan. Pengembangan dimaksud bertalian dengan main product revision, yaitu perancangan buku panduan Model Blended Learning Berbasis Webblog. Metode yang digunakan dalam penelitian ini adalah metode penelitian pengembangan yang berbasis FGD dan angket reviewer mendalam sebagai alat evaluasi. Hasil FGD dan angket reviewer mendalam dari sejumlah ahli dan calon pengguna buku pedoman, ditetapkan bahwa 1) format buku pedoman yang ergonomis adalah A5; 2) isi bahasan buku sebagian disusun dalam format bahasan tutorial sejalan dengan fungsi buku pedoman; 3) ukuran halaman A5 masih memberi ruang yang nyaman untuk pembacaan gambar-gambar bahan tutorial hasil screenshot; 4) layout naskah rata kiri-kanan dengan kepala alinea rata kiri dianggap cukup nyaman; 5) cover buku yang polos dianggap cukup eye-catching dengan penggunaan huruf sans serif; dan 6) font dengan rata tengah pada tampilan cover buku dianggap lebih nyaman.  Kata-kata kunci: blended learning, webblog, pengembangan, buku pedoman ABSTRACT             This research is a 2nd year development research. Previous research is a development study revision of the implementation of blended learning models based serve in the D-3 Visual Communication Design FBS, Undiksha,. The development is already reached the main position of product revision based on the findings of some problems in the steps and evaluation of learning activities. The revision of the learning model was developed using the pattern of the approach of Chiesa & Frattini (2009) relating to three achievements of development research, namely inputs (results of inventory and research theory), process (model development) and the outputs (formula of learning activities). The previous research has analyzed three problems that are a barrier to the implementation of this learning model, which is related to input, process, and output. The results of the analysis became a consideration in determining the revision of implementation of this blended learning model based serve. All records and findings in the research activities were compiled into a key ingredient in the writing of the Manual on the Blended learning Model based on the Webblog.Keywords: blended learning, inputs; process, outputs, manual, webblog

scholarly journals An approximate internal model-based neural control for serial robots with multiple clearance joints

2018 ◽  
Vol 10 (12) ◽  
pp. 168781401881232
Author(s):  
Lixin Yang ◽  
Xianmin Zhang
Keyword(s):  
Internal Model ◽  
Neural Control ◽  
Control Method ◽  
Differential Algebraic Equations ◽  
Algebraic Equations ◽  
Clearance Joints ◽  
Coulomb’S Friction ◽  
Model Based ◽  
Serial Robots ◽  
Joint Clearances

A dynamic model of serial robots with multiple clearance joints is developed. The contact phenomenon in the clearance joint is modeled by a continuous dissipative Hertz contact theory, and the friction force is calculated based on the modified Coulomb’s friction law. A neural network method is employed to predict the dynamic response, which avoids the problem in solving the differential algebraic equations. An approximate internal model-based neural control method is proposed to control the undesired effects arising from the joint clearances. The validity of the proposed method is verified by simulation results.

Interaction Process Model – ESM Quality Model Development Tool

2020 ◽  
Vol 25 (1) ◽  
pp. 10-17
Author(s):  
B.V. Boytsov ◽  
◽  
G.S. Zhetessova ◽  
M.K. Ibatov ◽  
◽  
...  
Keyword(s):  
Process Model ◽  
Swot Analysis ◽  
Statistical Data ◽  
Model Development ◽  
Interaction Process ◽  
Educational Process ◽  
Quality Model ◽  
Development Tool ◽  
The Republic ◽  
Education Science

The article discusses the methodology and provides the results of a multivariate SWOT analysis for a scientific and manufacturing educational process based on a set of regulatory and strategic documents, statistical data of the Republic of Kazakhstan; The main conclusions and description of the generated matrices for the subjects of interaction within the hierarchical triangle «Education – Science – Manufacturing (ESM)» are given.

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