摘要
针对口径为600 mm的薄型镜面在多点支撑情况下,分析了不同支撑方案的元件面形在频率域的响应特性,建立了离散支撑单元的1维梁模型,讨论了峰谷值、均方根值分别作为支撑方案优化目标函数的可行性,计算结果说明峰谷值、均方根值均不能正确评价面形在频率域的响应。分析了支撑单元的间距和大小对频率域的响应特性。根据计算结果,给出了理想支撑方案:中心支撑单元直径10 mm,外侧支撑单元直径10mm,支撑单元间距125 mm。
In the case of the multi-point support for a thin mirror with a diameter of 600 mm, the paper studied the frequency-response of components＇ surface, which was influenced by different support schemes. A one-dimensional beam model of dispersed support units had been established. The feasibility of the peak-to-valley（P-V）, RMS values as support optimization objective functions was discussed. The result is that the values of P-V, RMS can not be the correct evaluation of the surface in the frequency domain response. Then, the frequency-response characteristics influenced by the interval and size of support units were analyzed. According to the results, the ideal support scheme is.. the diameters of the center and lateral support units are 10 mm; the support unit interval is 125 mm.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2009年第1期29-33,共5页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(60508002)
