Synthesis of Distributed Controllers by Means of a Monolithic Approach

2006 ◽  
Author(s):  
Dirk Missal ◽  
Hans-Michael Hanisch
Keyword(s):  
Distributed Controllers ◽  
Monolithic Approach

A Quasi-Monolithic Approach to Microwave Ga-As Integrated Circuits

2006 ◽  
Author(s):  
E. M. Bastida ◽  
G. P. Donzelli ◽  
G. Ghione ◽  
C. Naldi
Keyword(s):  
Integrated Circuits ◽  
Monolithic Approach

scholarly journals Comparing double-step and penalty-based semirecursive formulations for hydraulically actuated multibody systems in a monolithic approach

2021 ◽  
Author(s):  
Suraj Jaiswal ◽  
Jarkko Rahikainen ◽  
Qasim Khadim ◽  
Jussi Sopanen ◽  
Aki Mikkola
Keyword(s):  
Time Integration ◽  
Physical Nature ◽  
Double Step ◽  
Work Cycle ◽  
Driven System ◽  
Hydraulically Actuated ◽  
Fluid Theory ◽  
Monolithic Approach ◽  
Constraint Enforcement ◽  
Volume Size

AbstractThe simulation of mechanical systems often requires modeling of systems of other physical nature, such as hydraulics. In such systems, the numerical stiffness introduced by the hydraulics can become a significant aspect to consider in the modeling, as it can negatively effect to the computational efficiency. The hydraulic system can be described by using the lumped fluid theory. In this approach, a pressure can be integrated from a differential equation in which effective bulk modulus is divided by a volume size. This representation can lead to numerical stiffness as a consequence of which time integration of a hydraulically driven system becomes cumbersome. In this regard, the used multibody formulation plays an important role, as there are many different procedures for the constraint enforcement and different sets of coordinates to choose from. This paper introduces the double-step semirecursive approach and compares it with a penalty-based semirecursive approach in case of coupled multibody and hydraulic dynamics within the monolithic framework. To this end, hydraulically actuated four-bar and quick-return mechanisms are analyzed as case studies. The two approaches are compared in terms of the work cycle, energy balance, constraint violation, and numerical efficiency of the mechanisms. It is concluded that the penalty-based semirecursive approach has a number of advantages compared with the double-step semirecursive approach, which is in accordance with the literature.

scholarly journals Implementing Distributed Controllers for Systems with Priorities

2010 ◽  
Vol 30 ◽  
pp. 31-46 ◽  
Author(s):  
Imene Ben-Hafaiedh ◽  
Susanne Graf ◽  
Hammadi Khairallah
Keyword(s):  
Distributed Controllers

Stokes–Darcy coupling in severe regimes using multiscale stabilisation for mixed finite elements: monolithic approach versus decoupled approach

2014 ◽  
Vol 23 (3-4) ◽  
pp. 113-137 ◽  
Author(s):  
L. Abouorm ◽  
R. Troian ◽  
S. Drapier ◽  
J. Bruchon ◽  
N. Moulin
Keyword(s):  
Finite Elements ◽  
Mixed Finite Elements ◽  
Monolithic Approach

A monolithic approach for modeling viscoelastic materials in civil engineering

2017 ◽  
Author(s):  
Michael A. Kraus ◽  
Michael Niederwald ◽  
Geralt Siebert
Keyword(s):  
Civil Engineering ◽  
Viscoelastic Materials ◽  
Monolithic Approach

Execution of Long-Duration Multi-Cloud Serverless Functions Using Selective Migration-Based Approach

2020 ◽  
Vol 10 (4) ◽  
pp. 70-97
Author(s):  
Boubaker Soltani ◽  
Afifa Ghenai ◽  
Nadia Zeghib
Keyword(s):  
Short Duration ◽  
Time Limit ◽  
Cloud Platform ◽  
New Paradigm ◽  
Selective Migration ◽  
Loosely Coupled ◽  
Software Deployment ◽  
Long Duration ◽  
Monolithic Approach ◽  
Multi Cloud

A relatively new paradigm for the Cloud-based software deployment is serverless computing. By adopting stateless loosely-coupled functions, the system can obtain many compositions for several purposes. Contrarily to monolithic approach, serverless computing facilitates the evolution of the applications, since the functions may be independently scheduled for reconstitution. Nevertheless, serverless computing dictates that function execution should be within a short duration (five minutes max in most Cloud platforms), after which the function is abruptly ended even if it has not completed its task. This leads to prevent functions requiring longer time from being adopted as Serverless functions. This paper deals with this drawback. It proposes a migration-based approach that promotes the execution of long-duration serverless functions: each running function that reaches the maximum time limit is repeatedly transferred to another cloud platform where it is carried on. At each migration step, the destination cloud is selected regarding the most relevant criteria.

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