研究和优化流动诱导的振动在一个水冷单色调器
Shuo Chai1,2, WanQian Zhu1,3, ZhanFei Zhang3
1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
The Review of scientific instruments
|March 28, 2024
概括
研究人员优化了水冷双晶单色染色器.
科学领域:
- 同步子辐射技术技术
- 机械工程 机械工程
- 振动分析 振动分析
背景情况:
- 上海同步辐射设施 (SSRF) 在BL17B光束线上使用水冷双晶单色仪.
- 提高这种单色仪的稳定性对于最佳的实验性能至关重要.
- 冷却系统的流量诱导振动已被确定为影响稳定性的关键因素.
研究的目的:
- 为了调查和减轻水冷双晶单色彩器的冷却系统的流动诱导的振动.
- 为了提高单色仪的整体稳定性和精度.
- 为类似设备优化提供可复制的方法.
主要方法:
- 使用计算流体动力学 (CFD) 模拟来分析振动机制.
- 进行实验验证以验证模拟结果.
- 实施并测试了冷却系统的修改,包括 bellows 定位和流量调整.
主要成果:
- 发现弹性 bellows 显著放大流动诱导的振动,将它们传输到第一个晶体.
- 将 bellows 靠近晶体的位置重新定位,使得距离角振动减少了 17.5%,滚动角振动减少了 6.1%.
- 将冷却液流量从3降至2.4 l/min进一步降低了6.0%的俯冲角振动和7.9%的滚动角振动.
结论:
- 优化气管的位置和冷却液的流量,有效地减少了水冷双晶单色机中的流动诱导的振动.
- 这些修改导致设备稳定性提高,相对角振动减少.
- 该研究为改善单色仪和相关科学仪器的稳定性提供了有价值的方法.
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