Design optimization of small scale unmanned air vehicles

... DESIGN OPTIMIZATION OF SMALL- SCALE UNMANNED AIR VEHICLES NG TZE HUI THOMAS (B.Eng (Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN ENGINEERING DEPARTMENT OF MECHANICAL ... this thesis, new design methodologies have been developed for the design of small- scale unmanned air vehicle (UAV) and micro air vehicle (MAV) It is well known...

Ngày tải lên: 14/09/2015, 10:33

... goal of controlling small- scale UAV helicopter: fully autonomy with the human-intelligence level CHAPTER 1.3 Small- scale UAV Helicopter Research in NUS The research on small- scale UAV helicopters ... smaller, lighter, and cheaper than before As such, the development of small- scale UAV helicopters becomes much more popular than CHAPTER ever Compared with its full -sca...

Ngày tải lên: 14/09/2015, 14:13

... utility of the CFD numerical simulations as a tool for design and optimization of hydropower performance and flow behavior through hydromechanical devices or hydraulic structures of intake and outlet ... out of the best efficiency point (BEP) Figure Change of the runner speed and the frequency of vortex at the draft tube of a Francis turbine One of the most i...

Ngày tải lên: 05/09/2013, 14:58

Ngày tải lên: 23/02/2014, 08:20

... the mutual effects of deviations from the steady-state on the various components of the system Several approaches to the determination of interaction matrices of biochemical systems have been ... determination of the Jacobian of the network, reduced by one component for each fast mode The presence of moiety conservations in metabolic or signaling networks has the same ef...

Ngày tải lên: 07/03/2014, 17:20

... refrigeration cycle The model of an irreversible regenerated air (Brayton) refrigerator with constant- temperature (hot reservoir temperature TH and cold reservoir temperature TL ) heat reservoirs to be considered ... (linear heat transfer law is applied between the heat reservoir and the working fluid) and the theory of heat exchangers, the rate of heat t...

Ngày tải lên: 09/09/2015, 10:17

... The development of Permanent Magnet Machines 1.1.2 Features of permanent magnet motors Permanent magnet synchronous motors iii 1.2.1 Structures and operating principles ... with the analysis and design of buried type Interior Permanent Magnet Synchronous Motors (IPMSM) The objective is to develop a design optimization procedure for this type of...

Ngày tải lên: 04/10/2015, 15:45

... performance and thermal characteristics of the system Description of the multi-stage evacuated solar desalination system The Multi-stage evacuated solar desalination system is a combination of ... Results and discussion There are many design and operating parameters which affect the performance characteristics and distillate yield of...

Ngày tải lên: 05/09/2013, 16:11

... limitations of these mills in adoption or upgradation of technologies , Central Pollution Control Board (CPCB) has taken– up a project on Development of Standards of AOX for Small Scale Pulp & Paper Mills ... study, following standards for AOX in treated effluentof small scale pulp & paper mills were prepared; AOX- 3.0 Kg/tonne of paper produced...

Ngày tải lên: 22/02/2014, 09:20

... captured in the questionnaire included household demography, classes and flock size of chickens, feeds and feeding management, health management, and the use of herbal plants in poultry management Intern ... usage of traditional herbs in poultry health management MATERIALS AND METHODS Study Site A diagnostic survey was carried out in Masvingo, Zimbabwe,...

Ngày tải lên: 08/03/2014, 09:20

... species 2.0 Inclusion level (percent) Results of investigations on the use of algae as additives in fish feed Table 1.3 12 Use of algae and aquatic macrophytes as feed in small-scale aquaculture ... doubles its biomass in 3-10 days, depending 18 Use of algae and aquatic macrophytes as feed in small-scale aquaculture – A review on con...

Ngày tải lên: 14/03/2014, 11:21

... of ‘dairy animals’ in India are kept in farms of to animals While the average Indian ‘dairy’ herd consists of animals, the average farm in the USA keeps 88 dairy cows while herds in New Zealand ... decline in milk price is however mainly attributable to the devaluation of the Indian Rupee Explanations of variables; sources of data: Local Cattle: Original Indian ‘milc...

Ngày tải lên: 24/03/2014, 04:20

Ngày tải lên: 31/03/2014, 12:20

... for the overall design and the prototype is very hard to modify as well 4|P a ge INTRODUCTION The purpose of this project is to design and manufacture an Unmanned Air Vehicle (UAV) As a group ... overview and understanding of UAV fuselage design and manufacture According to the optimization, this UAV is designed to maximize the endurance In order to achieve the de...

Ngày tải lên: 20/06/2014, 16:27