Essays about: "Sound and Vibration"

Showing result 1 - 5 of 47 essays containing the words Sound and Vibration.

1. 1. The design of evacuation alarms for people who are deaf or hard of hearing

   University essay from Lunds universitet/Avdelningen för Brandteknik

   Author : Anastasia Afanasova; [2023]
   Keywords : Alarm system; Deaf people; Hard-of-hearing people; Fire safety.; Technology and Engineering;

   Abstract : The ability to hear is essential for receiving auditory signals, which serve as warnings and alerts in many situations, including fire evacuation. However, people with hearing impairments may miss out such signals and can be exposed to dangerous situations. 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. SafeWalk : A tool for the visually impaired

   University essay from Högskolan i Halmstad/Akademin för informationsteknologi

   Author : Gabriel Färm; Mohammad Omar Abdullah; [2022]
   Keywords : App; Blind; Visually impaired; SafeWalk; Sensors; Buzzer; Battery;

   Abstract : This thesis aims to implement a system called SafeWalk to help visually impaired people to sense obstacles in their path and provide them with more independence and more effortless life routines without any external help. SafeWalk is a low power consuming system designed to replace the daily used white cane. READ MORE

5. 4. Hydroacoustic Modelling of Podded Propulsion System : Underwater Radiated Noise Prediction Using ANSYS

   University essay from KTH/Teknisk mekanik

   Author : Martin Persson; [2022]
   Keywords : Fluid Mechanics; Computational Aeroacoustics; Frequency Response; Noise and Vibration; Pod; Propulsion System; ANSYS; Reynolds-Averaged Navier-Stokes Equations; Kongsberg Maritime Sweden AB;

   Abstract : Ocean noise pollution is an invisible but growing threat. There are many sources of sound in the ocean but human underwater radiated noise, in particular from shipping is one of the most prominent one. Ocean noise pollution can interfere or sometimes even directly harm marine life. READ MORE

6. 5. Estimation of blocked forces from a rear drive unit (RDU) in a test rig fixture

   University essay from KTH/Teknisk akustik

   Author : Sanjay Jayachandran; [2022]
   Keywords : Acoustics; Vibration; Sound; Mechanics; Blocked Forces; Transfer Path Analysis; Component-based TPA; Vibro-acoustics;

   Abstract : In the modern world, vehicle manufacturers are not the sole producer of every component in a vehicle but instead assign different subsystems to various OEMs (Original Equipment Manufacturer). Subsystems such as Rear Drive Units (RDU), Power Transfer Units (PTU), E-drives etc. are developed separately and then integrated into the main vehicle. READ MORE