| Wave system fitting: A new method for force measurements in shock tunnels with long test duration | |
Luo CT(罗长童) ; Wang YP(汪云鹏); Wang C(王春); Jiang ZL(姜宗林); Luo, CT (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
| |
| Source Publication | MECHANICAL SYSTEMS AND SIGNAL PROCESSING
 |
| 2015-10 | |
| Volume | 62-63Pages:2841-2848 |
| ISSN | 0888-3270 |
| Abstract | Force measurements in shock tunnels are difficult due to the existence of vibrations excited by a sudden aerodynamic loading. Accelerometer inertia compensation could reduce its negative effect to some extent, but has inherent problems. A new signal decomposition method, wave system fitting (WSF), is proposed to remove vibration waves of low frequency. The WSF is accelerometer-free. It decomposes the balance signal and can separate vibration waves without the influence on the DC component, and it does work no matter the cycle of the sample signal is complete or not. As a standard signal post-processing tool in JF-12, the application results show that it works reliably with high accuracy, and it can also explain puzzling signals encountered in JF-12. WSF method is especially useful and irreplaceable whenever only a few cycles of a periodic signal could be obtained, as is usual for shock tunnels. (C) 2015 Elsevier Ltd. All rights reserved. |
| Keyword | Aerodynamic Force Measurements Strain Gauge Balance Inertia Compensation Signal Decomposition Accelerometer-free Shock Tunnels |
| DOI | 10.1016/j.ymssp.2015.02.024 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000355354300019 |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Mechanical |
| Funding Organization | This research has been supported by Innovation Grant of Chinese Academy of Sciences and the National Natural Science Foundation of China (Grant No. 90916028). |
| Department | LHD激波与爆轰物理 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58340 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Luo, CT (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Luo CT,Wang YP,Wang C,et al. Wave system fitting: A new method for force measurements in shock tunnels with long test duration[J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING,2015,62-63:2841-2848. |
| APA | Luo CT,Wang YP,Wang C,Jiang ZL,&Luo, CT .(2015).Wave system fitting: A new method for force measurements in shock tunnels with long test duration.MECHANICAL SYSTEMS AND SIGNAL PROCESSING,62-63,2841-2848. |
| MLA | Luo CT,et al."Wave system fitting: A new method for force measurements in shock tunnels with long test duration".MECHANICAL SYSTEMS AND SIGNAL PROCESSING 62-63(2015):2841-2848. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 08883.pdf（1074KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment