Essays about: "MDO"

Showing result 1 - 5 of 12 essays containing the word MDO.

  1. 1. Analytical tool for electromechanical actuators for primary and secondary flight control systems : Optimization of the initial design of the EMA using parametric sizing models

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Albin Linderstam; [2019]
    Keywords : EMA; electromechanical actuators; three-phase synchronous permanent magnet motor; power-offbrake; two-stage planetary gear; ball screw; Saab Avionics Systems;

    Abstract : The number of flights have increased by 80% between 1990 and 2014, and the demand for air travel continues to increase. Even though the aviation sector contributes to economical and social benefits, it still affects the climate change [1]. READ MORE

  2. 2. Development of Acoustic Simulations using Parametric CAD Models in COMSOL

    University essay from Linköpings universitet/Maskinkonstruktion

    Author : Antoine Bouilloux-Lafont; Rubén Noya Pozo; [2019]
    Keywords : Parametric CAD models; KBE; acoustics simulations; optimisation; collaboration; MDO;

    Abstract : With constantly changing regulations on emissions, heavy commercial vehicles manufacturershave to adapt for their products to preserve their quality while meetingthese new requirements. Over the past decades, noise emissions have become a greatconcern and new stricter laws demand companies to decrease their vehicle pass-bynoise target values. READ MORE

  3. 3. Development of a Methodology for Efficient FEM Pre-processes to Aid Simulation-driven Design

    University essay from Linköpings universitet/Maskinkonstruktion; Linköpings universitet/Maskinkonstruktion

    Author : Mattias Bäckman; Josef Kling; [2018]
    Keywords : FEM; Welds; Automation; MDO; HyperMesh; Simulation-driven design; Design Automation; Pre-processes; Mesh;

    Abstract : With both tougher competition and legislations, companies always strive to improve their products while cutting unnecessary costs. This master’s thesis investigates if the after-treatment systems department at the heavy-duty vehicle company Scania CV AB in Södertälje, Sweden can improve their development process by implementing automated FEM pre-processes for welded sheet metal components. READ MORE

  4. 4. Probabilistic Multidisciplinary Design Optimization on a high-pressure sandwich wall in a rocket engine application

    University essay from Umeå universitet/Institutionen för fysik

    Author : Dennis Wahlström; [2017]
    Keywords : Multidisciplinary Design Optimization; Analytical Target Cascading; Multidisciplinary Feasible; Space Nozzle; Ariane; Expander Cycle Engine; Upper stage space rocket engine; Probabilistic; Augmented Lagrangian relaxation; Finite element; Solid Mechanics; Thermodynamics; Aerodynamics; Industrial approach; Latin Hypercube Sampling; Factorial Analysis; Analysis of Variance;

    Abstract : A need to find better achievement has always been required in the space industrythrough time. Advanced technologies are provided to accomplish goals for humanityfor space explorer and space missions, to apprehend answers and widen knowledges. READ MORE

  5. 5. Combined gas- and steam turbine as prime mover in marine applications

    University essay from Chalmers tekniska högskola/Institutionen för sjöfart och marin teknik

    Author : Sebastian Packalén; Niklas Karlsson Nord; [2017]
    Keywords : Gas turbine; steam turbine; COGES; COGAS; Siemens; emissions; efficiency; ship propulsion;

    Abstract : The gas turbines are known to have good efficiency when used in combined cycle configurations and has been used for ship propulsion in different types of vessels; mainly naval vessels, cruise ships and fast ferries. Still, diesel engines are by far the most common type of engines used for ship propulsion today. READ MORE