机构

• 长春光学精密机械与物... [2]
• 地理科学与资源研究所 [1]
• 自动化研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [3]
• 期刊论文 [1]

发表日期

• 2024 [1]
• 2017 [1]
• 2011 [2]

学科主题

• 第一研究方向 [1]
• 第一研究方向::运动... [1]

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Conservation or deforestation: Households attitudinal analysis of forest resources for sustainable development of the Tain (II) Forest Reserve, Ghana 期刊论文  OAI收割 ENVIRONMENTAL SCIENCE & POLICY, 2024, 卷号: 152, 页码: 12 作者:  Kumi, Michael Asiedu;  Yang, Zheng;  Zhan, Jinyan;  Liu, Wei;  Wang, Huihui   |  收藏  |  浏览/下载：20/0  |  提交时间：2024/05/06 Deforestation  Forest conservation attitudes  Socio-demographic drivers  Questionnaire survey  Multi  nominal logistic regression model   Interval Type-2 TSK Nominal-fuzzy-model-based Sliding Mode Controller Design for Flexible Airbreathing Hypersonic Vehicles 会议论文  OAI收割 Naples, Italy, July 9-12 作者:  Gao, Junlong;  Yi, Jianqiang;  Pu, Zhiqiang;  Li, Chengdong   |  收藏  |  浏览/下载：37/0  |  提交时间：2017/05/09 Type-2 Fuzzy Logic System  Hypersonic Vehicle  Nominal Model  Model-based Control  Sliding Mode  Data-driven   Structure buckling load interval analysis of supercavitating projectile (EI CONFERENCE) 会议论文  OAI收割 2011 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS'2011, June 12, 2011 - June 15, 2011, Guiyang, China 作者:  Zhou L. 收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25 As a result of supercavitating projectiles with high underwater velocity  their structures undergo high longitudinal force. It is necessary to perform structure buckling load interval analysis because the uncertainty of structural own parameters should be considered. Critical buckling load of supercavitating projectiles is calculated by Galerkin method. The partial matrixes of critical buckling load implicit function to each uncertainty variable are deduced  and the interval of structure critical buckling load is calculated by interval analysis and convex model methods. Numerical results show that the nominal value  lower and upper bounds of critical buckling load increase with the increment of the ratio of base diameter to cavitator diameter. And the uncertainty degree of basic variables should be controlled as far as possible in the project for high reliability. 2011 IEEE.   Reentry guidance based on feedback linearization (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China Li D.-W. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 This paper presents a new reentry guidance algorithm for RLV (Reusable Launching Vehicle). The algorithm consists of two integrated components: trajectory planning algorithm and tracking algorithm. The most striking feature of algorithm here lies in that both planning and tracking are executed directly in height-velocity space  which is different from the methodology of configuration of drag in traditional shuttle guidance. In the session of trajectory planning  all trajectory constraints can be expressed with upper bound and lower bound in height-velocity space  then a linear interpolation is carried to search the nominal trajectory satisfying the requirement of downrange and target constraints. Then the tracking algorithm uses feedback linearization method to track this nominal profile and meet all constraints. Another typical feature of this algorithm is the strategy of downrange extension using FPA (flight path angle) controller to fulfill the requirement of large downrange. Proper combination of planning-tracking algorithm and FPA controller can bring great flexibility and adaptability to reentry guidance. The algorithm is proved to be robust enough to accommodate the model error and noises in the dynamics. 2011 IEEE.