Essays about: "Acoustic Optimization"

Showing result 1 - 5 of 17 essays containing the words Acoustic Optimization.

  1. 1. Exploratory study on Additive Manufacturing in Urban mobility

    University essay from

    Author : Kaustubh Deshmukh; [2023]
    Keywords : ;

    Abstract : This thesis report presents a comprehensive study on the design and development of an Additively manufactured Unit cell for car door panels, aiming to enhance impact resistance and reduce noise transmission to the vehicle cabin. In order to accomplish these goals, the study focuses on combining two novel techniques namely quasi-zero stiffness (QZS) structures and phononic crystals (both scattering and locally resonating type). READ MORE

  3. 2. NVH analysis and optimization of electric powertrain

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Anujit Dafle; [2022]
    Keywords : Electric powertrain; Gear whine; Noise Vibration Harshness NVH ; Elektrisk drivlina; kuggvin; buller och vibrationer;

    Abstract : With increasing focus on electromobility many companies are developing vehicles powered by an electric energy source. Previously, engines used to be the most prominent source of noise in a traditional Internal Combustion Engine (ICE) vehicle. READ MORE

  4. 3. Rocket Jet Impinging on a Surface

    University essay from KTH/Teknisk mekanik

    Author : Javier Capel Jorquera; [2022]
    Keywords : Rocket jet impinging on a surface; Favre-Averaged Equations; turbulence modeling; numerical considerations; Method of Characteristics; MOC; plate optimization;

    Abstract : With the continuous growth of the space industry and the introduction of reusable rockets, the number of rocket launches is expected to increase significantly in the following years. During rocket launching, the engine exhaust impinges on the launch structure producing a complex flow field. READ MORE

  5. 4. Development of Acoustic Simulation Methods for Exhaust Systems

    University essay from KTH/Optimeringslära och systemteori

    Author : Christin Friberg Femling; [2021]
    Keywords : Optimization; Acoustic Optimization; Systems Engineering; Engine Acoustics; Vehicle Acoustics; Internal Combustion Engine Acoustics; Exhaust Orifice Noise; Pass-by Noise; Optimering; Akustisk optimering; Systemteknik; Motorakustik; Fordonsakustik; Akustik hos Förbränningsmotorer; Avgasljud;

    Abstract : Noise pollution is a growing concern due to its harmfulness to human health. Heavy vehicles powered by internal combustion engines stands for a major part of the environmental noise, why noise reduction is an increasing priority in enginve development. READ MORE

  6. 5. Shape optimization of axial cooling fan via 3D CFD simulation and surrogate modeling

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Martin Granlöf; [2021]
    Keywords : Fan noise; shape optimization; mesh morphing; computational fluid dynamics; computational aeroacoustics; Efficient Global Optimization; Reynolds-averaged Navier-Stokes;

    Abstract : Due to legislative reasons and environmental concerns the automotive and transport sector are shifting their focus from traditional internal combustion engine (ICE) vehicles to development of battery electric vehicles (BEVs). This brings new challanges to design of cooling systems where axial fans are one of the key components. READ MORE