中国科学院机构知识库网格系统: 检索

Cold Test of a Superconducting Quadrupole-Sextupole Nested CCT Prototype using matrix harmonic coil 期刊论文 OAI收割
JOURNAL OF INSTRUMENTATION, 2021, 卷号: 16, 期号: 10, 页码: 15
作者: Yang, Y. B.; Yang, W. J.; Ou, X. J.; Mei, E. M.; Wu, W.

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收藏 | 浏览/下载：30/0 | 提交时间：2022/04/11

Acceleration cavities and superconducting magnets (high-temperature, superconductor, radiation hardened magnets, normal-conducting, permanent magnet devices, wigglers and undulators) Instrumentation for heavy-ion accelerators Overall mechanics design (support structures and materials, vibration analysis etc) Data processing methods

Vibration suppression analysis and experimental test of additional constrained damping layer in space science experiment cabinet 期刊论文 OAI收割
COMPOSITES AND ADVANCED MATERIALS, 2021, 卷号: 30, 页码: 1-12
作者: Luo HT(骆海涛); Guo SW( 郭思伟); Yu CS(于长帅); Fu J(富佳); Wang HC(王昊辰)

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收藏 | 浏览/下载：29/0 | 提交时间：2021/05/13

constrained damping layer dynamic model natural frequency modal loss factor acceleration response vibration suppression

Research on Flexible Structure of a Space Flight Prototype Doppler Asymmetric Spatial Heterodyne Interferometer 会议论文 OAI收割
Beijing, PEOPLES R CHINA, 2020-11-30
作者: Dang, Jianan; Sun, Jian; Feng, Yutao; Chang, Chenguang; Wu, Yang

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收藏 | 浏览/下载：26/0 | 提交时间：2021/06/21

Doppler Asymmetric Spatial Heterodyne interferometer Space Flight Prototype Flexible support structure Modal analysis Random vibration Acceleration overload

Analysis of Vibration Sensitivity Induced by the Elastic Deformation of Vertical Optical Reference Cavities 期刊论文 OAI收割
IEEE ACCESS, 2020, 卷号: 8, 页码: 194466-194476
作者: Xu, Guanjun; Jiao, Dongdong; Chen, Long; Zhang, Linbo; Dong, Ruifang

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收藏 | 浏览/下载：23/0 | 提交时间：2021/11/29

Optical sensors Vibrations Strain Mirrors Optical interferometry Sensitivity Acceleration Ultra-stable laser optical reference cavity vibration sensitivity elastic deformation finite element analysis

Simulating and Testing Microvibrations on an Optical Satellite Using Acceleration Sensor-Based Jitter Measurements 期刊论文 OAI收割
Sensors, 2019, 卷号: 19, 期号: 8, 页码: 13
作者: S.B.Chen; M.Xuan; L.Zhang; S.Gu; X.X.Gong

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收藏 | 浏览/下载：29/0 | 提交时间：2020/08/24

microvibration,optical amplification factor,acceleration sensor,jitter measurement,pixel offset,micro-vibration

Effect of vibration on the separation efficiency of oil shale in a compound dry separator 期刊论文 OAI收割
FUEL, 2018, 卷号: 214, 页码: 242-253
作者: Yu, Xiaodong; Luo, Zhenfu; Li, Haibin; Gan, Deqing

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收藏 | 浏览/下载：22/0 | 提交时间：2018/09/06

Compound Dry Separator Oil Shale Particle Force Vibration Acceleration Oil Content

Random vibration analysis on the support of strapdown inertial navigation 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
作者: Li M.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

Vibration of the support is an important factor to the accuracy of strapdown inertial navigation. To get vibration characteristics of the support FEM model of the support was created with Ansys and then response characteristics were analyzed on the support under the separated random loads during carrier flight including the phases of subsonic and subsonic. To validate the analysis method wide band random vibration test was done on the points of the support which are used for mounting inertial instruments. The comparison of the analysis and the test data shows that the relative error of analysis result is not more than 13%. According to the two results the support structure was improved. Finally random vibration analysis was carried out on the improved one. The result shows that the acceleration response was largely reduced than before. This research can be a reference of performance improvement of the strapdown inertial support and navigation system precision. 2011 IEEE.

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：27/0 | 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.

Research on the the device of non-angular vibration for opto-electronic platform (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China
An Y.; Song C.-P.; Kuang R.-J.; Jin G.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

The opto-electronic platform is the main equipment for aviation reconnaissance. It is a surveillance system with the function of search recognition orientation and tracking by opto- electronic instruments. It is made up of opto-electronic instruments which are used to get high quality image and stabilization tracking system to control stabilization and gesture of platform for exact tracking. The opto-electronic platform purpose is to achieve high quality image. Besides the impact of optic system the image quality of the system is influenced greatly in the vibration environment. The research worked by Zhao peng which demonstrated the affection caused by angular vibration was worse than which caused by line vibration and what was multiplied direct ratio with plane altitude. So it is necessary to design a new device which could be used widely and has good angular vibration isolation effect. According to the theory of parallelogram the non-angular vibration device had been designed with spatial links and the theory of non-angular vibration was analyzed. The three-dimensional model was set with UG the analysis was done by ADAMS/vibration software. The acceleration and displacement response of the device in each direction was calculated by inspiriting it with sine wave of the acceleration in three directions and the stiffness and damp were studied. All the work prove the design principle of the device is reasonable and the device is adopted to keep the platform motion moving horizontally at the meantime the device is good at isolating vibration in all directions. 2010 SPIE.

Optimal design of strap-down inertial navigation support under random loads (EI CONFERENCE) 会议论文 OAI收割
2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China
作者: Li M.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

In order to realize miniaturization and light weight of the strap-down inertial navigation system and then to make sure that it works well under random loads optimal design is applied to the strap-down inertial navigation support with the methods of topology optimization and size optimization. Firstly based on the installation requirement of devices and connection requirement of the support and the carrier the initial structure of the support is designed. Topology optimization with FEA software ANSYS is adopted on the initial structure to get the basic one. Then 5 critical sizes are chosen as design variables and the support structure is optimized by means of size optimization to reach light weight with satisfying the requirement of dynamic stiffness. Finally random vibration analysis is applied to the initial structure. In the mean time random vibration test is carried out to qualify the analysis method. After the qualification a random vibration analysis is applied to the optimized support structure to get the rms of displacement response and acceleration response of the support to validate whether the optimized structure is appropriate. The results indicate that the dynamic stiffness of the optimized support structure satisfies the design requirements and its weight is lighter 49.38% than that of the initial one. This research can be a reference to the structure design of supports under random loads and the result has been applied to the development and manufacture of a prototype aerocraft. 2010 IEEE.