VDI Verlag eLibrary

Reactor network synthesis with guaranteed robust performance

Xiao Zhao

Reihe: Verfahrenstechnik

Band 952 2017

Treffer in den folgenden Teilen:

„… presented in this work, in particular to the analysis of the eigenvalue constraints for reactor network …” „… therefore results in the so-called eigenvalue constraint for the design of dynamic systems with specified …” „… to formulate an eigenvalue constraint for the entire reactor network 133 7 Summary and outlook model …”

Introduction S. 1-16

„… by imposing so-called eigenvalue constraints. The considered dynamic properties are formulated by …” „… also modeled in this way. The resulting robust eigenvalue constraint guarantees that not only the …” „… eigenvalue constraints for reactor network synthesis much more complicated, because eigenvalue-based dynamic …”

Solution methods S. 60-106

„… , complementarities, uncertain parameters and eigenvalue constraints. To the author’s knowledge, there do not exist …” „… by setting c in Eq. (5.69) to a very small constant, e.g., 1.0E−6. The eigenvalue constraint can be …” „… between the eigenvalue constraint (5.73) and the semi-definite constraint (5.70). Theorem 5.4.1 (Lyapunov …”

Titelei/Inhaltsverzeichnis S. I-XIV

„… , Integration of process and control system design, Superstructure approach, Eigenvalue constraints …” „… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.2.1 Eigenvalue constraint for open-loop reactor network synthesis . . . 40 3.2.2 Continuity …” „… analysis of the proposed eigenvalue constraint . . . . . . 41 3.2.3 A direct problem formulation …”

Open-loop reactor network synthesis S. 30-46

„… formulating an optimization problem in the next section. 3.2 Problem formulation 3.2.1 Eigenvalue constraint …” „… present an eigenvalue constraint only for non-idle reactors, which will be used in the problem formulation …” „… reactors in the network. So an eigenvalue constraint for guaranteeing dynamic properties of the openloop …”

Case study of allyl chloride production S. 107-132

„… eigenvalue constraint. This problem is in the form of Eq. (3.44) but without constraint (3.44c) and …” „… the superstructure. The triangular points refer to the nominal designs without eigenvalue constraints …” „… unstable. The square points refer to the optimal designs with eigenvalue constraints, which are robustly …”

Simultaneous design of reactor network and its decentralized control system S. 47-59

„… section, we first propose a robust eigenvalue constraint to ensure desired dynamic properties of the …” „… network synthesis in this section. We start by formulating an eigenvalue constraint for the closed-loop …” „… reactor network and its decentralized control system 4.2.1 Eigenvalue constraint for simultaneous reactor …”

Some Preliminaries S. 17-29

„… eigenvalue constraint (2.17) can be used to guarantee specified response speed of nonlinear system (2.1). The …” „… . Fundamental results on dynamic systems will be introduced first. After that we discuss eigenvalue and spectral …” „… ,+∞), if the conditions of Lemma 2.1.1 hold. 18 2.2 Eigenvalue and spectral abscissa functions 2.2 …”

Bibliography S. 158-176

„… programming approaches to mathematical programs with complementarity constraints. SIAM Journal on Optimization …” „… with equilibrium constraints: global convergence and stationarity properties. Mathematical Programming …” „… . Bandoni. Interaction between process design and process operability of chemical processes: an eigenvalue …”

doi.org/10.51202/9783186952035

Teilzugriff

Markieren für den Zitationsdownload

Improving the robustness of the finite cell method for problems with large deformations

Wadhah Garhuom

Reihe: Mechanik/Bruchmechanik

Band 359 2024

Treffer in den folgenden Teilen:

Summary and outlook S. 130-133

„… the moment fitting equations while also incor-porating inequality constraints to guarantee that the …” „… points while maintaining a high level of accuracy. In Chapter 5, we presented an eigenvalue …” „… deformation analysis.The eigenvalue stabilization strategy relies on performing an eigenvalue decomposi-tion …”

Titelei/Inhaltsverzeichnis S. I-VIII

„… , Remeshing, Große VerformungKeywords: Finite cell method, Moment fitting quadrature, Eigenvalue stabilization …” „… through a non-negative moment fitting quadrature rule. An eigenvalue stabilization technique is developed …” „… . . . . . . . . . . . . . . . . . . . . . . 534.9.2 Single pore of a foam . . . . . . . . . . . . . . . . . . . . . . . . . . 555 Eigenvalue …”

Introduction S. 1-5

„… ]that yields only positive weights. Thereby, constraints are added to the moment fit-ting procedure to …” „… propose an eigenvalue stabilization procedure [63, 114], inwhich for each broken cell, the small …” „… solution. The eigenvalue stabilization technique iscombined with the α-method to further improve the …”

doi.org/10.51202/9783186359186

Kein Zugriff

Markieren für den Zitationsdownload

International Conference on Gears 2022

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2389 2022

Treffer in den folgenden Teilen:

A. Zhang, J. Wei, M. Cao, B. Peng Dynamic modeling and accuracy evaluation method for complex irregular components of aviation transmission S. 573-584

„… system are denoted as M and K, respectively. The eigenvalue problem can be expressed in displacement …” „… space as Eq. (1). Φ is the eigenvector, representing the vibrating mode corresponding to the eigenvalue …” „… model, including the coupling constraints, is reduced to the interface nodes, which is the first step of …”

doi.org/10.51202/9783181023891

Kein Zugriff

Markieren für den Zitationsdownload

Dritev – Drivetrain For Vehicles 2018

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2328 2018

Treffer in den folgenden Teilen:

B. Arnold, B. Lecointre Shift simulator for shift feel and quality development of manual transmissions S. I-425-I-440

„… design of shift simulator Packing and appliance constraints drove most of the design of the simulator …” „… constraints. Both motors provide sufficient torque at all shift knob heights. To ensure maximum repeatability …” „… also a result of the packaging constraints mentioned before. Because of the tilted design, the …”

doi.org/10.51202/9783181023280

Teilzugriff

Markieren für den Zitationsdownload

Pinch-based Methods for Absorption and Extraction Process and Solvent Screening

Christian Redepenning

Reihe: Verfahrenstechnik

Band 955 2018

Treffer in den folgenden Teilen:

Pinch-based shortcut method for the design of isothermal extraction columns S. 59-89

„… equilibrium is constrained by both the summation constraint and the specified temperature. Hence, the matrix …” „… eigenvalue, λ j, the corresponding eigenvector,e j, is stable, if the eigenvalue is smaller than unity …” „… , unstable, if the eigenvalue is greater than unity, and neutral, if the eigenvalue equals unity (Sandefur …”

Pinch-based shortcut method for the design of adiabatic absorption columns S. 21-58

„… eigenvalue equals unity, while the remaining are smaller or greater than unity. Each situation causes …” „… one eigenvalue equals unity, the behavior is inconclusive and the corresponding eigenvector is called …” „… weights. A fourth type of pinch occurs if one eigenvalue equals unity, Eq. (2.31). Then, the model has a …”

Pinch-based solvent screening for absorption and extraction processes S. 90-136

„… assumption of a linear path of stage compositions. Some well-known models are the eigenvalue criterion (EC …” „… are other constraints which need to be considered when selecting a solvent. Examples are availability …” „… in our procedure, but often these constraints can only be captured with significant additional effort …”

doi.org/10.51202/9783186955036

Teilzugriff

Markieren für den Zitationsdownload

International Conference on Gears 2017

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2294 2017

Treffer in den folgenden Teilen:

J. Neufond, Y. Xu, J. Perret-Liaudet, E. Rigaud The iterative spectral method for computing the planetary gear dynamic response S. 209-218

„… systems such as wind turbines, under NVH constraints requires design to integrate the vibroacoustic …” „… basis is then deduced from the following eigenvalue problem: k Ω (4) where k represents the mean …” „… eigenvalue problem leads to a set of natural frequencies separated into tw o groups, one of multiplicity 1 …”

doi.org/10.51202/9783181022948

Teilzugriff

Markieren für den Zitationsdownload

Synchronisierung agentenbasierter dynamischer Systeme mittels strukturbeschränkter Regelungen

Jan Strubel

Reihe: Mess-, Steuerungs- und Regelungstechnik

Band 1250 2016

Treffer in den folgenden Teilen:

Literatur S. 156-168

„… multivariable systems beyond closed loop eigenvalue assignment“. In: IEEE Transactions on Automatic Control 21.5 …” „… . „Minimum norm output feedback design under specified eigenvalue areas“. In: Systems & Control Letters 3.2 …” „… . Control of linear systems with regulation and input constraints. Springer Verlag, London, 2000. [96] L …”

doi.org/10.51202/9783186250087

Teilzugriff

Markieren für den Zitationsdownload

Temporally Consistent Superpixels

Matthias Reso

Reihe: Informatik/ Kommunikation

Band 861 2018

Treffer in den folgenden Teilen:

Superpixel Propagation and Handling of Structural Changes S. 46-63

„… constraint can be satisfied and the consistency of the superpixel flow with the underlying image movement can …” „… the line through the spatial center along the eigenvector corresponding to the smaller eigenvalue …” „… spatial center of the superpixel and follows the eigenvector corresponding to the smallest eigenvalue …”

doi.org/10.51202/9783186861108

Teilzugriff

Markieren für den Zitationsdownload

Model-Based Design of Pure and Multicomponent Cellulosic Biofuels for Advanced Engine Concepts

Manuel Dahmen

Reihe: Verfahrenstechnik

Band 954 2017

Treffer in den folgenden Teilen:

Titelei/Inhaltsverzeichnis S. I-XVIII

„… equivalence ratio λ eigenvalue μ dynamic viscosity Pa·s ν kinematic viscosity mm2/s υ stoichiometric …” „… ∗ optimal value 0 reference state cum cumulative j eigenvector/eigenvalue index lb lower bound norm …” „… lower heating value), and the constraints in the problem formulation allow to define target ranges for …”

Blend formulation by simultaneous product and pathway design S. 130-174

„… analysis, constraints with regard to the fuel’s boiling characteristics and phase stability could not be …” „… stability criterion, linear and nonlinear mixing rules, as well as constraints for a fuel’s distillation …” „… refine scenario by making changes to palette compounds, pathways and/or property constraints Figure 7.1 …”

doi.org/10.51202/9783186954039

Teilzugriff

Markieren für den Zitationsdownload

Fahrerassistenz und Integrierte Sicherheit 2016

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2288 2016

Treffer in den folgenden Teilen:

S. Gehrig, S. Ramos, P. Pinggera, U. Franke Detecting Small Road Hazards – A Must for Self-Driving Vehicles S. 425-438

„… obstacles correspond to the alternative hypothesis Ho. The hypotheses are characterized by constraints on …” „… bound constraints. The optimization problem is solved iteratively using a projected …” „… reported, i.e. for patches in sufficiently textured image areas, where the minimum eigenvalue of the …”

doi.org/10.51202/9783181022887

Teilzugriff

Markieren für den Zitationsdownload

Visual Motion Processing

Thomas Guthier

Reihe: Mess-, Steuerungs- und Regelungstechnik

Band 1251 2016

Treffer in den folgenden Teilen:

Unsupervised Pattern Learning S. 26-57

„… discussed, followed by an analysis of constraints that lead to a parts-based representation. Then, sNMF as …” „… eigenvalue. In case of a zero mean input, W1 points to the dimension with the highest variance in the data …” „… extensions of the NMF is to add orthogonality constraints on the basis vectors, like in [17] or the LNMF [69 …”

doi.org/10.51202/9783186251084

Teilzugriff

Markieren für den Zitationsdownload

Generic Topology Optimization Based on Local State Features

Nikola Aulig

Reihe: Rechnerunterstützte Verfahren

Band 468 2017

Treffer in den folgenden Teilen:

Fundamentals S. 8-28

„… applications were, for instance, heat conduction maximization, stress constraints, eigenvalue maximization …” „… the state vector, and G0 and Gl are optimization constraints with the target volume V0. In topology …” „… volume constraint G0(ρ). This constraint restricts the total 1Note that, in contrast to Sigmund and Maute …”

Structure Representations for Evolutionary Computation S. 29-47

„… stress constraints [147]. This approach requires a connectivity analysis: material elements that do not …” „… structure for a volume constraint is transformed to the task of finding the optimum subtree, including the …” „… algorithm and a constraint handling evolutionary algorithm have been applied for optimization [187, 188 …”

doi.org/10.51202/9783186468208

Teilzugriff

Markieren für den Zitationsdownload

A Runtime Adaptation Concept to reinforce Versatility in Industrial Automation

Haitham Elfahaam

Reihe: Mess-, Steuerungs- und Regelungstechnik

Band 1267 2018

Treffer in den folgenden Teilen:

Methodology Investigation - Analytical Approach - Linear Model S. 40-54

„… . Computing the eigenvalues of matrix A will result in − 1 < λn ≤ ... ≤ λ2 < λ1 = 1 (5.14) With an eigenvalue …” „… transactions must not exceed the existing load of the node. n∑ j=1 αij ≤ 1 (5.22) • A further constraint can be …” „… ., A1 = 1. Thus the objectives and constraints for the SDP can be formulated and inputted to the solver …”

State of the Art S. 6-22

„… deployment. The discussed method can be used in the presented work to form a list of constraints and …” „… ) Using Eq. 2.6, it can be clearly seen in Fig. 2.5 that the second Largest Eigenvalue Magnitude (SLEM …” „… optimum distribution according to the defined optimization/constraints criteria is the objective, e.g …”

doi.org/10.51202/9783186267085

Teilzugriff

Markieren für den Zitationsdownload

Model-based and Experimental Analysis of Transient Electrodialysis Processes

Matthias Johannink

Reihe: Verfahrenstechnik

Band 949 2016

doi.org/10.51202/9783186949035

Teilzugriff

Markieren für den Zitationsdownload

Higher-Order Multiple Object Tracking

Roberto D. Henschel

Reihe: Informatik/ Kommunikation

Band 875 2021

Treffer in den folgenden Teilen:

Fundamentals S. 33-79

„… constraints on f are imposed, statistical methods are used to infer an approximation of f . Given a …” „… the objective function f is a linear functional over R and P describes the constraints in terms of …” „… equality constraints: If a,x ∈ Rn and b ∈ R, we have 〈a,x〉 ≤ b⇐⇒ −〈a,x〉 ≥ −b, and 〈a,x〉 = b⇐⇒ ( aᵀ −aᵀ ) x …”

Bibliography S. 172-196

„… . Pardalos and Stephen A. Vavasis. “Quadratic programming with one negative eigenvalue is NP-hard”. In …” „… Environmental Constraints. 2016. arXiv: 1612.02155 [cs.CV]. [202] Simon Lacoste-Julien, Martin Jaggi, Mark …”

doi.org/10.51202/9783186875105

Teilzugriff

Markieren für den Zitationsdownload

Diese Webseite verwendet Cookies

[#IABV2_TITLE#]

Ergebnisse (31)

Reactor network synthesis with guaranteed robust performance

Improving the robustness of the finite cell method for problems with large deformations

International Conference on Gears 2022

Dritev – Drivetrain For Vehicles 2018

Pinch-based Methods for Absorption and Extraction Process and Solvent Screening

International Conference on Gears 2017

Synchronisierung agentenbasierter dynamischer Systeme mittels strukturbeschränkter Regelungen

Temporally Consistent Superpixels

Model-Based Design of Pure and Multicomponent Cellulosic Biofuels for Advanced Engine Concepts

Fahrerassistenz und Integrierte Sicherheit 2016

Visual Motion Processing

Generic Topology Optimization Based on Local State Features

A Runtime Adaptation Concept to reinforce Versatility in Industrial Automation

Model-based and Experimental Analysis of Transient Electrodialysis Processes

Higher-Order Multiple Object Tracking