Essays about: "Free vibration thesis"

Showing result 1 - 5 of 14 essays containing the words Free vibration thesis.

  1. 1. Study and optimization of a hexacopter's composite structure

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Helena Delmotte; [2023]
    Keywords : Lightweight structure; Drone; Structural optimization; FEA; Lättviktsstruktur; Drönare; Strukturell optimering; FEA;

    Abstract : Nowadays, the forestry industry still uses heavy machinery damaging both the forest and the soil. The start-up AirForestry is currently developing a sustainable way to thin and harvest trees. With their 6.2m wide electric drone carrying a harvesting tool, they can reach, thin, cut and carry trees without the need for access roads. READ MORE

  3. 2. Spectral density approach for dynamic analysis of high-speed railway bridges

    University essay from KTH/Bro- och stålbyggnad

    Author : Alket Ciku; Vlad Gavriliuc; [2022]
    Keywords : ;

    Abstract : The focus of this thesis is to introduce the concept of train signature in the spectraldensity approach used in the dynamic analysis of simply-supported railway bridges.Due to the increased transportation demands, longer trains with higher axles loadsand top speeds are being developed. READ MORE

  4. 3. Design and Commissioning of Pulsed Wire Magnetic Measurement System for Insertion Device Characterization

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Mohammed Ebbeni; [2021]
    Keywords : pulsed wire; synchrotron; radiation; insertion device; undulator; wiggler; magnetic measurement; hall-probe; hall probe; commissioning; phase error; euler bernoulli; beam; coupled vibration; optical sensor; laser sensor; vibrations; photodiode; beamline; Physics and Astronomy;

    Abstract : Synchrotron and Free Electron Laser (FEL) light is becoming an increasingly sought after tool for almost all scientific research aspects. MAX IV Laboratory introduced the first 4th generation light source that provides the brightest synchrotron light in the world. READ MORE

  5. 4. Analytical and Numerical Study of a Passive Self-Tuning Resonator

    University essay from Lunds universitet/Mekanik

    Author : Majeed al Tmizi; [2018]
    Keywords : Energy harvesting; mechanical vibrations; passive self-tuning; beam resonators; string resonators; sliding proof-mass; MEMS; actuators; Technology and Engineering;

    Abstract : Energy harvesting, from ambient vibrations, can be a very effective method for solving the problem with powering electronics were the need for constant power or regular battery replacements is a trouble or an inconvenience. But, since all energy harvesters, using mechanical vibrations, need to operate in resonance in order to generate maximal electrical output, and ambient vibrations usually do not have a constant vibration frequency, this results in the need for efficient self-tuning systems. READ MORE

  6. 5. PHM Approaches for Reliability of ECUs : Analyses of Canaries and Real-Time Data Acquisition

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Gabriel Dag; [2017]
    Keywords : solder joint; vibration; thermal cycling; microcontroller;

    Abstract : Today, Scania CV AB is facing challenging demands on functionality and performance within their vehicles. The electronics are increasing rapidly and to stay competitive on the market, concerns regarding reliability of electronic systems needs to be evaluated. READ MORE