Sökning: "vibration and harshness"
Visar resultat 1 - 5 av 10 uppsatser innehållade orden vibration and harshness.
1. Mapping of IPM machine efficiency and Noise Vibration Harshness : An investigation into trade-offs with respect to efficiency and Noise Vibration Harshness
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : Due to the recent shift towards electrification, electric machines has become a prominent option to be used in vehicle applications. Much effort is spent in the development process of these machines to make optimizations in order to improve the performance aspects of the machine. LÄS MER
2. NVH analysis and optimization of electric powertrain
Master-uppsats, KTH/Maskinkonstruktion (Inst.)Sammanfattning : 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. LÄS MER
3. 3D Printed Lattice Structure for Driveline Applications
Master-uppsats, KTH/MaterialvetenskapSammanfattning : Lattice structures have received a lot of attention as cellular materials in recent years because of their outstanding properties, such as high strength-to-weight ratio, heat transfer, energy absorption, and capability of improving noise, vibration and harshness (NVH) behavior. This type of structure received a boost from additive manufacturing (AM) technology, which can fabricate geometries in practically any shape. LÄS MER
4. Fault detection of planetary gearboxes in BLDC-motors using vibration and acoustic noise analysis
Master-uppsats, Uppsala universitet/Institutionen för elektroteknikSammanfattning : This thesis aims to use vibration and acoustic noise analysis to help a production line of a certain motor type to ensure good quality. Noise from the gearbox is sometimes present and the way it is detected is with a human listening to it. This type of error detection is subjective, and it is possible for human error to be present. LÄS MER
5. Drag Torque and Synchronization Modelling in a Dual Clutch Transmission
Master-uppsats, Lunds universitet/MaskinelementSammanfattning : Noise, vibration and harshness (NVH) is a big consideration in the automotive industry. In order to create an as pleasant driving experience as possible for the driver, NVH should be minimized. One of the sources of NVH comes from the transmission due to the synchronization process. LÄS MER