中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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Tests on the mitigation of dry granular flows induced by mountain landslides using ring-net technologies 期刊论文  OAI收割
EARTH SURFACE PROCESSES AND LANDFORMS, 2025, 卷号: 50, 期号: 2, 页码: 20
作者:  
Wang, Bin;  Tian, Hongyan;  Su, Lijun;  Xiao, Siyou;  Liu, Zhenyu
  |  收藏  |  浏览/下载:15/0  |  提交时间:2025/03/24
Dynamic-based model for calculating the boulder impact force in debris flow 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2024, 卷号: 21, 期号: 6, 页码: 1930-1940
作者:  
Yang, Chaoping;  Zhang, Shaojie;  Yin, Yueping;  Yang, Hongjuan;  Wei, Fangqiang
  |  收藏  |  浏览/下载:21/0  |  提交时间:2024/08/14
Deriving Debris-Flow Dynamics From Real-Time Impact-Force Measurements 期刊论文  OAI收割
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2023, 卷号: 128, 期号: 3, 页码: e2022JF006715
作者:  
Yan, Yan;  Tang, Hui;  Hu, Kaiheng;  Turowski, Jens M.;  Wei, Fangqiang
  |  收藏  |  浏览/下载:19/0  |  提交时间:2023/06/10
Experimental validation of a new semi-empirical impact force model of the dry granular flow impact against a rigid barrier 期刊论文  OAI收割
LANDSLIDES, 2020, 页码: 4291-4308
作者:  
Jiang, Yuan-Jun;  Fan, Xiao-Yi;  Su, Li-Jun;  Xiao, Si-you;  Sui, Jing
  |  收藏  |  浏览/下载:23/0  |  提交时间:2020/12/10
An engineering model and its numerical validation for a malevolent aircraft impinging against a rigid target: Force and impulse estimations 期刊论文  OAI收割
NUCLEAR ENGINEERING AND DESIGN, 2019, 卷号: 342, 页码: 1-9
作者:  
Li TP;  Wang W(王为);  Yuan FP(袁福平);  Wu XL(武晓雷)
  |  收藏  |  浏览/下载:51/0  |  提交时间:2019/04/11
Numerical simulation of mud-flows impacting structures 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2019, 卷号: 16, 期号: 2, 页码: 364-382
作者:  
Greco, Massimo;  Di Cristo, Cristiana;  Iervolino, Michele;  Vacca, Andrea
  |  收藏  |  浏览/下载:25/0  |  提交时间:2020/11/02
Buffer and vibration optimization of missile data recorder structure (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Mechatronics and Materials Processing, ICMMP 2011, November 18, 2011 - November 20, 2011, Guangzhou, China
作者:  
Zhang J.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
On the analysis of the original data recorder  the stress wave theory is the elastic theory can explain the filter buffer question from the micro-small space  made several key problems clear when buffer and damping  from this designed a composite structure for vibration reduction  distinguished between a cushion theory and application field of stress wave theory  which made the dynamic stress of protected component down about one order of magnitude. Optimization with Isight and Ls-dyna  the traditional rigid spring-buffer model whose object is to reduce the impact of acceleration that can not accurately describe the elastic force of the part of the actual situation  the protected component's dynamic stress down about 69.3% and the data recorder's quality 300g lower  finally passed the Marshall Hammer test successfully. 2011 Trans Tech Publications.  
Contact-impact analys with clearance hinge in flexible multi-body system (EI CONFERENCE) 会议论文  OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
Ge M.; Jia H.; Liu B.
收藏  |  浏览/下载:52/0  |  提交时间:2013/03/25
Hinge in mechanical systems exist small clearance and contact deformation  After consideration of flexible components  cause the system to the wear and tear  impact force reduced at the clearance  noise  contact time increased  vibration  contact-impact areas expand and clearance also caused disturbance of the rod angular velocity of the linkage. 2011 IEEE.  reliability reduce or even failure[1]. Therefore  the hinge clearance and the impact of flexible components in kinetic models should be considered. In this paper  a nonlinear spring-damper hinge clearance model is considered to establish mechanical system structure of dynamic equations[46]  through a four-bar linkage hinge with multi-clearance rotation of ADAMS dynamic simulation for dynamics simulation study. Simulation results show that hinge clearance and link flexible in Four-link mechanism dynamics have a great impact on performance: connection with the clearance lead to pin holes to produce a series of collisions  and a larger initial impact force