搜索结果: 151-165 共查到“工学 optimization”相关记录509条 . 查询时间(0.062 秒)
Modeling and Optimization of Transmission Schemes in Energy Constrained Wireless Sensor Networks
Transmission Schemes Sensor Networks
2015/6/19
We consider a wireless sensor network with energy constraints. We model the energy consumption in the transmitter circuit along with that for transmission. We model the bottom three layers of the trad...
The Phase-Locked Loop (PLL) is a key component of modern electronic communication and control systems. PLL is designed to extract signals from transmission channels. It plays an important role in syst...
Airplane Design with Aerodynamic Shape Optimization
Aerodynamic Shape Optimization Airplane Design
2015/6/18
A light structure is needed to reduce W0. SFC is the province of the
engine manufacturers. The aerodynamic designer should try to maximize
VL
D
. This means the cruising speed V should be increase...
Aerodynamic Inverse Design and Shape Optimization via Control Theory
Aerodynamic Inverse Design Shape
2015/6/18
Capability to predict the flow past an airplane in different flight regimes such as
take off, cruise, flutter.
2 Interactive design calculations to allow immediate improvement
3 A...
Select ADO-DG Case Studies in Aerodynamic Design Optimization
Aerodynamic Design Optimization Select ADO-DG
2015/6/18
Select ADO-DG Case Studies in Aerodynamic Design Optimization。
Aerodynamic Inverse Design and Shape Optimization via Control Theory
via Control Theory Shape
2015/6/18
Capability to predict the flow past an airplane in different flight regimes such as
take off, cruise, flutter.
2 Interactive design calculations to allow immediate improvement
3 A...
A light structure is needed to reduce W0. SFC is the province of the
engine manufacturers. The aerodynamic designer should try to maximize
VL
D
. This means the cruising speed V should be increase...
For a given stress σ, the required skin thickness varies inversely as the wing
depth d. Thus weight can be reduced by increasing the thickness to chord
ratio. But this will increase shock drag in th...
A Sequel to Lighthill’s Early Work — Aerodynamic Inverse Design and Shape Optimization via Control Theory
Design and Shape via Control Theory
2015/6/18
Capability to predict the flow past an airplane in different
flight regimes such as take off, cruise, flutter.
2 Interactive design calculations to allow immediate
imp...
Mathematical Underpinnings of Aerodynamic Shape Optimization
aerodynamic Mathematical Underpinnings
2015/6/18
Regard the wing as a device to generate lift (with minimum
drag) by controlling the flow.
Apply theory of optimal control of systems governed by PDEs
(Lions) with boundary control (the wing s...
Aero dynamic Shap e Optimization fo r Aircraft Design。
Discrete, Continuous, and Constrained Optimization Using Collectives
Collectives Discrete Continuous
2015/6/18
The optimization approaches used for aerospace systems usually
require centralized coordination and synchronous updates. In addition,
while the approaches treat the large numbers of variables, they ...
While aircraft environmental performance has been important since the beginnings
of commercial aviation, continuously increasing passenger traffic and a rise in public
awareness have made aircr...
DISTRIBUTED MULTIDISCIPLINARY DESIGN AND COLLABORATIVE OPTIMIZATION
COLLABORATIVE OPTIMIZATION MULTIDISCIPLINARY DESIGN
2015/6/18
These notes describe some recent ideas for distributed design and their application to
large-scale aerospace systems. In this type of multidisciplinary optimization, design
tasks are decomposed in...
Supersonic Aircraft Optimization for Minimizing Drag and Sonic Boom
Sonic Boom Minimizing Drag
2015/6/18
A design tool incorporating classical sonic boom theory, computational fluid dynamics
and a multi-objective genetic algorithm was developed for low-boom supersonic aircraft
optimization. Both sonic ...