Damping separation of finite open systems in gravity-related experiments in the free molecular flow regime
文献类型：期刊论文
| 作者 | Teng, HouQiang; Dong, JiaQi; Wang, Yisen; Huang, Liang; Xu P(徐鹏) |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2024-04-16 |
| 卷号 | 109期号:8页码:16 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.109.083022 |
| 通讯作者 | Dong, Jia-Qi(dongjq@lzu.edu.cn) |
| 英文摘要 | The residual gas damping of the test mass (TM) in the free molecular flow regime is studied in the finite open systems for high-precision gravity-related experiments. Through strict derivation, we separate the damping coefficients for two finite open systems, i.e., the biplate system and the sensor core system, into base damping and diffusion damping. This elucidates the relationship between the free damping in the infinite gas volume and the proximity damping in the constrained volume, unifies them into one microscopic picture, and allows us to point out three pathways of energy dissipation in the biplate gap. We also provide the conditions that need to be met to achieve this separation. In applications, for space gravitational wave detection, our results for the residual gas damping coefficient for the 4TM torsion balance experiment are the closest to the experimental and simulation data compared to previous models. For the LISA mission, our estimation for residual gas acceleration noise at the sensitive axis is consistent with the simulation result, within about 5% difference. In addition, in the test of the gravitational inversesquare law, our results suggest that the constraint on the distance between TM and the conducting membrane can be reduced by about 28%. |
| 分类号 | 二类/Q1 |
| WOS关键词 | COSINE LAW ; GRACE ; CHAMP ; DISSIPATION |
| 资助项目 | National Key Research and Development Program of China[2020YFC2200601] ; National Natural Science Foundation of China[12175090] ; National Natural Science Foundation of China[12305045] ; National Natural Science Foundation of China[12247101] ; National Natural Science Foundation of China[11905087] ; The 111 Project[B20063] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001221668800001 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; The 111 Project |
| 其他责任者 | Dong, Jia-Qi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95318]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 推荐引用方式 GB/T 7714 | Teng, HouQiang,Dong, JiaQi,Wang, Yisen,et al. Damping separation of finite open systems in gravity-related experiments in the free molecular flow regime[J]. PHYSICAL REVIEW D,2024,109(8):16. |
| APA | Teng, HouQiang,Dong, JiaQi,Wang, Yisen,Huang, Liang,&徐鹏.(2024).Damping separation of finite open systems in gravity-related experiments in the free molecular flow regime.PHYSICAL REVIEW D,109(8),16. |
| MLA | Teng, HouQiang,et al."Damping separation of finite open systems in gravity-related experiments in the free molecular flow regime".PHYSICAL REVIEW D 109.8(2024):16. |
入库方式： OAI收割
来源：力学研究所
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