Search for dissertations about: "large-scale structures"

Showing result 1 - 5 of 280 swedish dissertations containing the words large-scale structures.

  2. 1. On performance limitations of large-scale networks with distributed feedback control

    Author : Emma Tegling; Henrik Sandberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Networked control systems; microgrids; platooning; vehicular formation; multi-agent systems; H2 norms; fundamental limitations; consensus; Distributed control; large-scale networks; oscillator networks; power networks; power system dynamics; system performance; spatially invariant systems; Electrical Engineering; Elektro- och systemteknik;

    Abstract : We address the question of performance of large-scale networks with distributed feedback control. We consider networked dynamical systems with single and double integrator dynamics, subject to distributed disturbances. We focus on two types of problems. First, we consider problems modeled over regular lattice structures. READ MORE

  4. 2. Path Dependence and Path Shaping : Unearthing institutional dynamics in large-scale project organizing

    Author : Ermal Hetemi; Cali Nuur; Sofia Pemsel; Anna Jerbrant; KTH; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; path dependence; path shaping; organisational lock-in; institutional field; knowledge work; Ledarskap; entreprenörskap och organisation; Ledarskap; entreprenörskap och organisation; Organisation theory; Organisationsteori; Industriell ekonomi; Industrial economy; Industriell ekonomi och organisation;

    Abstract : Over the last two decades, large-scale project endeavors or major programs that typically deliver a substantial physical infrastructure or a complex product with a lifetime that can extend for decades and across industries have become the norm for many utility sectors, such as transport, energy, water, or food. The allure of ever-larger projects shows no sign of fading away in the face of sustainable development and grand societal challenges – quite the contrary. READ MORE

  5. 3. Dynamics of large-scale fluidized bed combustion plants

    Author : Guillermo Martinez Castilla; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; operational flexibility; combined heat and power; process control; thermal power plant; biomass combustion;

    Abstract : Fluidized bed combustion (FBC) plants are widely used in energy systems across the world for the thermochemical conversion of solid fuels, and are especially suitable for low-rank fuels (a category to which renewable solid fuels belong). FBC plants are traditionally operated for base-load electricity production and for heat production, both of which processes are characterized by steady and stable operation. READ MORE

  6. 4. System identification of large-scale linear and nonlinear structural dynamicmodels

    Author : Vahid Yaghoubi Nasrabadi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Finite element model; Surrogate modeling; Bootstrapping; Polynomial chaos expansion; System identification; Exponential integration; Uncertainty quantification;

    Abstract : System identification is a powerful technique to build a model from measurement data by using methods from different fields such as stochastic inference, optimization and linear algebra. It consists of three steps: collecting data, constructing a mathematical model and estimating its parameters. READ MORE

  7. 5. Addressing the need of transition by socializing and making new friends : A socio-technical perspective on large-scale change in construction

    Author : Olof Håkansson; Henrik Linderoth; Mattias Jacobsson; Annika Moscati; Jönköping University; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Construction industry; digitalization; socio-technical system; transition; technological niches; strategic innovation program; actor-network theory;

    Abstract : This research took its point of departure in the aspiration of large-scale change of the construction industry, where existing industry structures has been frequently criticized. To facilitate innovation and change in the Swedish construction industry, a strategic innovation program has been established based on the idea that research, innovation, and development should manifest itself through the mobilization of collaborative and actor-driven networks. READ MORE