Essays about: "Pass-by Noise"

Found 5 essays containing the words Pass-by Noise.

  1. 1. 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

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

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Rubén Noya Pozo; Antoine Bouilloux-Lafont; [2019]
    Keywords : parametric CAD models; KBE; acoustic simulations; optimisation; collaboration; MDO; Parametriska CAD modeller; KBE; akustiksimulering; optimering; samarbete; MDO;

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

  4. 3. Pass-by noise contribution analysis of electric vehicles

    University essay from KTH/MWL Marcus Wallenberg Laboratoriet

    Author : Linus Falk Lissel; [2014]
    Keywords : Transfer Path Analysis TPA ; Airborn Source Quantification ASQ ; Operational Path Analysis OPA ; Time domain; In-room Pass-By Noise test; MIMO FIR-filter;

    Abstract : In the modern urban lifestyle, more and more people are exposed to noise pollution in form of traffic noise. As a response to this, the automotive OEMs (Original Equipment Manufacturer) are put under pressure to reduce the emitted noise from vehicles. READ MORE

  5. 4. Evaluation of a new measurement method for tire/road noise

    University essay from KTH/MWL Marcus Wallenberg Laboratoriet

    Author : Jens Slama; [2012]
    Keywords : tire road measurement method; CPX; road noise; urban area; SPB;

    Abstract : Noise is a growing health concern as urban residents increases rapidly and more reports of noise causing sleep disturbances and increasing the risk of cardiovascular health problems are published. Noise has a negative influence on life quality. This life quality deficiency also shows in housing and office pricing in noisy environments. READ MORE

  6. 5. Connected Me : Hardware for high speed BCC

    University essay from Institutionen för systemteknik; Tekniska högskolan

    Author : Bibin Babu; [2012]
    Keywords : Body-coupled communication; analog front end; IEEE 802.15.6; Body area network; Measurements; Connected Me;

    Abstract : Body coupled communication (BCC) is a hot topic in personal networking domain. Many works arepublished suggesting different architectures for BCC since its inception in 1995 by Zimmerman. The number ofelectronic gadgets used by a single person increases as time pass by. Its a tedious job to transfer data betweenthen from a user point of view. READ MORE