Sökning: "Propeller characteristics"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Propeller characteristics.

1. 1. Användarcentrerad konceptutveckling : Förbättrad användarupplevelse genom välgrundade designändringar i Husqvarnas batteridrivna motorsågar

   Master-uppsats, Linköpings universitet/Produktrealisering

   Författare :Arvid Wittwång; Markus Storck; [2023]
   Nyckelord :husqvarna; motorsåg; produktutveckling; centrifugalkoppling; konceptutveckling; användarcentrerad design; maskinteknik;

   Sammanfattning : Med Husqvarna som fallföretag undersöker det här arbetet de egenskaper som användare önskar se hos en batteridriven motorsåg och hur de uppnås. Detta görs i skenet av Husqvarnas beslut att sätta en centrifugalkoppling på den batteridrivna motorsågen 542i XP, som vid lansering under hösten 2023 blev den första i sitt slag. LÄS MER

3. 2. Electric Propulsion for a High Altitude Unmanned Aerial Vehicle

   Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Jacob Hjort Friderichsen; David Jönsson; [2022]
   Nyckelord :Electric Propulsion; UAV; ALPHA; Electronic Speed Controller; BLDC Motor; Propeller;

   Sammanfattning : The catalogue of observational platforms for space and atmospheric research can be expanded by utilising drones equipped with specialised instrumentation and capable of flying at high altitudes. In this project the requirements for an electric propulsion system applicable to the KTH Royal Institute of Technology ALPHA project are evaluated. LÄS MER

4. 3. Modelling & Analysis of a TiltWing Aircraft

   Master-uppsats, KTH/Flygdynamik

   Författare :Felix Rubin; [2018]
   Nyckelord :;

   Sammanfattning : The aim of this report is the investigation of a hybrid vertical take-off and landing (VTOL) tilt wing aircraft which is in development at the company Dufour Aerospace. Using a model, programmed in MATLAB® different stages of flight can be simulated and investigated. LÄS MER

5. 4. What affects the VC spatial clustering in China? Research on determinants of location selection and VC performance

   D-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

   Författare :Weijia Chen; [2018]
   Nyckelord :venture capital; spatial clustering; VC performance; location quotient;

   Sammanfattning : As a key propeller for the economy development and technology industrialization, venture capital (VC) has attracted the attention of both academics and policy makers around the world. In China, the spatial distribution of VC industry exhibits a high degree of agglomeration: More than 60% of Chinese VC firms cluster in Beijing, Shanghai, Zhejiang and Guangdong and VC investment performance in these four provinces behaves significant better than other non VC clustering regions. LÄS MER

7. 5. Modeling and Control of a Parallel HEV Powertrain with Focus on the Clutch

   Master-uppsats, Linköpings universitet/Fordonssystem; Linköpings universitet/Tekniska fakulteten

   Författare :Mahdi Morsali; [2015]
   Nyckelord :parallel hybrid electric vehicles; clutch modeling; driveline modeling; torsional vibrations; slipping clutch; energy management; optimization;

   Sammanfattning : Nowadays, the increasing amount of greenhouse gases and diminishing of the existing petroleum minerals for future generations, has led the automotive companies to think of producing vehicles with less emissions and fuel consumption. For this purpose, Hybrid Electric Vehicles (HEVs) have emerged in the recent decades. LÄS MER