机构

• 力学研究所 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [2]

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浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Fluid distribution in a two-phase space accumulator predicted by a coupled multi-scale model based on single-domain approach 期刊论文  OAI收割 INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2025, 卷号: 162, 页码: 16 作者:  Wang, Qing;  Yu, Qiang;  Du WF(杜王芳);  Fang, Zenong;  Li K(李凯)   |  收藏  |  浏览/下载：9/0  |  提交时间：2025/02/24 Two-phase space accumulator  Microgravity  Dynamic fluid distribution  Multi-scale model  Single-domain approach   An information theoretic approach to model reduction based on frequency-domain Cross-Gramian information (EI CONFERENCE) 会议论文  OAI收割 2010 8th World Congress on Intelligent Control and Automation, WCICA 2010, July 7, 2010 - July 9, 2010, Jinan, China 作者:  Zhou J. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 We focused our attention on model reduction for linear time invariant (LTI) continuous time systems with single input and single output (SISO). We analyzed the strongpoint and shortcoming of an information theoretic approach called minimum information loss method for model reduction. We explained relationships between the steady-state information entropy and controllability information for the Gaussian systems. The controllability  observability and Cross-Gramian information were analyzed in the time-domain. The frequency-domain Cross-Gramian information (FCGI) was defined based on Cross-Gramian matrix containing information associated with both controllability and observability. Furthermore  a valuable application of the frequency-domain Cross-Gramian information to model reduction (FCGMIL) was developed by using the concept and properties of frequency-domain Cross-Gramian information. The performance index of FCGMIL is to minimize the frequency-domain Cross-Gramian information loss caused by eliminating the state variables with weak contributions to Cross-Gramian information over some frequency band. Two numerical examples are illustrated to verify the efficiency of FCGMIL. 2010 IEEE.