Essays about: "Acoustic Design"

Showing result 1 - 5 of 103 essays containing the words Acoustic Design.

  1. 1. Experimental Study of Installation Effects on Cooling Fan Noise

    University essay from KTH/Marcus Wallenberg Laboratoriet MWL

    Author : Yu-Yu Lu; [2021]
    Keywords : Electric vehicles; Cooling fan noise; Installation effects; Free-space measurement; Wall-mounted measurement; In-vehicle measurement; Spectral decomposition method; Tonality; Broadband noise level.;

    Abstract : Owing to the ever-changing developments of battery and electric powertrain, vehicle electrification is the trend in the future. Without the presence of a combustion engine, masking effect from it reduces and noises from other components become perceivable. Among all, the cooling fan is one of the major noise sources. READ MORE

  2. 2. Designing a better soundscape for the home office : Devlopment of acoustic furniture

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Author : Hanna Mattsson; Theodor Mihel; [2021]
    Keywords : Industrial design engineering; Human centered design; Acoustic design; Furniture design; Product development; Home office; Sound environment; Teknisk design; människocentrerad design; Akustisk design; Möbeldesign; Produktutveckling; Hemmakontor; Ljudmiljö;

    Abstract : As Covid-19 spread throughout the world in the early months of 2020 many people’s lives changed drastically. The situation forced millions of workers and students to start performing their work remotely from home. Currently in Sweden statistics shows that every third person working does it from home at least once a week. READ MORE

  3. 3. Role of damping in NVH CAE procedures

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Rahul Sharma; [2021]
    Keywords : NVH; CAE; Damping;

    Abstract :   Automotive manufacturers currently face a challenge with expeditious enhancement of the vibro-acoustic properties of their vehicles. A major reason for this setback is the limited design information available during initial development stages added with limited knowledge of damping within complex structures. READ MORE

  4. 4. 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

  5. 5. Acoustic trapping of sub-micrometreparticles within microfluidics particles within microfluidics

    University essay from Uppsala universitet/MikrosystemteknikUppsala universitet/Polymerkemi

    Author : Björn Stenestam; [2021]
    Keywords : ;

    Abstract : The aim of this project was to prove that a pre-existing standardmethod for bacterial-DNA extraction can be reduced down to the microscale and in doing so be used in an on-chip setting.The first phase in this project was to identify an appropriate methodand material for droplet generation. READ MORE