Integrating GIS and urban spatial system dynamic model for urban expansion analysis

2008 ◽  
Author(s):  
Hongmei Ye ◽  
Lijun Li ◽  
Cheng Wang ◽  
Shanzhen Yi
Keyword(s):  
Dynamic Model ◽  
Urban Expansion ◽  
System Dynamic ◽  
System Dynamic Model ◽  
Spatial System

Modeling urban expansion scenarios by coupling cellular automata model and system dynamic model in Beijing, China

2006 ◽  
Vol 26 (3-4) ◽  
pp. 323-345 ◽  
Author(s):  
Chunyang He ◽  
Norio Okada ◽  
Qiaofeng Zhang ◽  
Peijun Shi ◽  
Jingshui Zhang
Keyword(s):  
Cellular Automata ◽  
Dynamic Model ◽  
Urban Expansion ◽  
System Dynamic ◽  
System Dynamic Model ◽  
Cellular Automata Model ◽  
Beijing China

scholarly journals A spatial system dynamic model for regional desertification simulation – A case study of Ordos, China

2016 ◽  
Vol 83 ◽  
pp. 179-192 ◽  
Author(s):  
Duanyang Xu ◽  
Alin Song ◽  
Hefeng Tong ◽  
Hongyan Ren ◽  
Yunfeng Hu ◽  
...  
Keyword(s):  
Dynamic Model ◽  
System Dynamic ◽  
System Dynamic Model ◽  
Spatial System

Toward a circular economy: A system dynamic model of recycling framework for aseptic paper packaging waste in Indonesia

2021 ◽  
Vol 301 ◽  
pp. 126901
Author(s):  
Tsai-Chi Kuo ◽  
Ni-Ying Hsu ◽  
Reza Wattimena ◽  
I-Hsuan Hong ◽  
Chin-Jung Chao ◽  
...  
Keyword(s):  
Dynamic Model ◽  
Circular Economy ◽  
System Dynamic ◽  
System Dynamic Model ◽  
Packaging Waste

Aero-engine dynamic model based on an improved compact propulsion system dynamic model

2021 ◽  
pp. 095965182098408
Author(s):  
Qiangang Zheng ◽  
Yong Wang ◽  
Chongwen Jin ◽  
Haibo Zhang
Keyword(s):  
Dynamic Model ◽  
Propulsion System ◽  
System Dynamic ◽  
Inlet Temperature ◽  
System Dynamic Model ◽  
Component Level ◽  
Engine Model ◽  
Surge Margin ◽  
Aero Engine ◽  
Engine Dynamic

The modern advanced aero-engine control methods are onboard dynamic model–based algorithms. In this article, a novel aero-engine dynamic modeling method based on improved compact propulsion system dynamic model is proposed. The aero-engine model is divided into inlet, core engine, surge margin and nozzle models for establishing sub-model in the compact propulsion system dynamic model. The model of core engine is state variable model. The models of inlet, surge margin and nozzle are nonlinear models which are similar to the component level model. A new scheduling scheme for basepoint control vector, basepoint state vector and basepoint output vector which considers the change of engine total inlet temperature is proposed to improve engine model accuracy especially the steady. The online feedback correction of measurable parameters is adopted to improve the steady and dynamic accuracy of model. The modeling errors of improved compact propulsion system dynamic model remain unchanged when engine total inlet temperature of different conditions are the same or changes small. The model accuracy of compact propulsion system dynamic model, especially the measurable parameters, is improved by online feedback correction. Moreover, the real-time performance of compact propulsion system dynamic model and improved compact propulsion system dynamic model are much better than component level model.

Sign in / Sign up

Export Citation Format

Share Document