Essays about: "natural frequencies"

Showing result 21 - 25 of 113 essays containing the words natural frequencies.

1. 21. FE Simulations of Mounting of an Anisotropic Work Piece Material to Reduce the Effects of Vibration

   University essay from Lunds universitet/Industriell Produktion

   Author : Punith Prakash; Sudarshan Girigimallayanapalya Shivanna; [2021]
   Keywords : Optical cavity; Anisotropy material; FE simulation; Modal analysis.; Technology and Engineering;

   Abstract : Optical cavities should be designed to be insensitive to vibration in all directions. The study of the behavior of the material used to develop an optical cavity is vital for the cavity to be insensitive in all orders. READ MORE

3. 22. Automatic data processing of traction motor measured data and vibration analysis of test bench

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Arshey Dhangekar; [2021]
   Keywords : Electric motor; Traction motor; MATLAB; data processing; data analysis; COMSOL Multiphysics; FEM; test bench; natural frequency;

   Abstract : One of the goals of ABB AB is to develop highly efficient electric motors for traction application. The demand for traction motors is increasing due to the rise in electric vehicles sale and railway locomotive engines. READ MORE

4. 23. Modelling and testing of a solar panel structure for KNATTE (Kinesthetic Node and Autonomous Table-Top Emulator)

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Elena Fernández Bravo; [2021]
   Keywords : Frictionless platform; Linear Quadratic Gaussian; Flexible appendages; Finite Element Method;

   Abstract : One of the challenges that satellites face is the interaction between control movement and vibration of flexible appendages such as solar arrays and antennas that can negatively affect the performance of the spacecraft. The aim of this thesis is to develop a numerical model of a solar panel structure for KNATTE, a frictionless platform developed by the Onboard Space Systems group at Luleå University of Technology, and develop a control law that reduces the flexible vibration of the solar arrays when attitude control manoeuvres are performed. READ MORE

5. 24. Paper Machine Press Felt Monitoring : A Case Study on PM2 in Karlsborg

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Aron Laurell Håkansson; [2021]
   Keywords : paper machine; press fabric; press felt; vibration; condition monitoring; pappersmaskin; pressduk; pressfilt; vibration; tillståndsövervakning;

   Abstract : Press felts are highly critical components of the paper machine. A degraded press felt could lead to paper web breaks, which requires the paper machine to be restarted. Moreover, a degraded felt influences the quality of the paper, leading to paper disposal. READ MORE

6. 25. Influence of Foundation Modelling on the Seismic Response of a Concrete Dam

   University essay from KTH/Betongbyggnad

   Author : Stella Harrison; Siri Nöjd; [2021]
   Keywords : concrete dam; earthquake; finite element analysis; free-field forces; mass foundation; betong dam; jordbävning; finita element analys; free-field forces; inkluderad bergsmassa;

   Abstract : It is of great importance to ensure the structural safety of dams during earthquakes since a failure may cause catastrophic consequences. Conventional computation of the structural response of dams is based on a simplified approach where the foundation is considered as massless. READ MORE