红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2015年
4期
1273-1277
,共5页
主动支撑%力矩校正%优化设计%有限元
主動支撐%力矩校正%優化設計%有限元
주동지탱%력구교정%우화설계%유한원
active support%moment correction%optimum design%FEM
基于力校正的主动支撑技术已广泛应用于光学镜面支撑,而基于力矩校正的方法目前还鲜有研究,为了深入探讨该课题,在传统力促动器主动支撑的基础上引入了基于力矩校正的反射镜主动支撑。首先,从镜面主动支撑原理出发,介绍了镜面面形主动校正的分类,着重对比分析了力校正和力矩校正的优缺点。进而,根据力矩主动校正的特点,利用在反射镜背部施加3组等效力矩的方法,对一块400 mm口径的轻量化反射镜进行了静力学分析与优化,拟合后镜面变形RMS值由原来的331 nm降为9.35 nm,优化率为97%。分析结果表明,基于力矩校正的主动支撑是有效的,同时为主动支撑的智能化及多样化提供了一种新的思路。
基于力校正的主動支撐技術已廣汎應用于光學鏡麵支撐,而基于力矩校正的方法目前還鮮有研究,為瞭深入探討該課題,在傳統力促動器主動支撐的基礎上引入瞭基于力矩校正的反射鏡主動支撐。首先,從鏡麵主動支撐原理齣髮,介紹瞭鏡麵麵形主動校正的分類,著重對比分析瞭力校正和力矩校正的優缺點。進而,根據力矩主動校正的特點,利用在反射鏡揹部施加3組等效力矩的方法,對一塊400 mm口徑的輕量化反射鏡進行瞭靜力學分析與優化,擬閤後鏡麵變形RMS值由原來的331 nm降為9.35 nm,優化率為97%。分析結果錶明,基于力矩校正的主動支撐是有效的,同時為主動支撐的智能化及多樣化提供瞭一種新的思路。
기우력교정적주동지탱기술이엄범응용우광학경면지탱,이기우력구교정적방법목전환선유연구,위료심입탐토해과제,재전통력촉동기주동지탱적기출상인입료기우력구교정적반사경주동지탱。수선,종경면주동지탱원리출발,개소료경면면형주동교정적분류,착중대비분석료력교정화력구교정적우결점。진이,근거력구주동교정적특점,이용재반사경배부시가3조등효력구적방법,대일괴400 mm구경적경양화반사경진행료정역학분석여우화,의합후경면변형RMS치유원래적331 nm강위9.35 nm,우화솔위97%。분석결과표명,기우력구교정적주동지탱시유효적,동시위주동지탱적지능화급다양화제공료일충신적사로。
Active support based on axial force correction was widely applied to optical mirror support, while the research of moment correction was infrequency. In order to profoundly develop such study, the active support based on moment correction was introduced in the foundation of force correction. First, according to the principle of active support, the category of active correction for mirror surface was introduced. Especially, the difference between force correction and moment correction was compared in detail. Then a lightweight mirror with the aperture of 400 mm was selected to be calculated and optimized in statics, according to applying three groups equivalent moments. As a result, the mirror deformation was reduced from 331 nm to 9.35 nm, the rate of optimization was 97%. In conclusion, the active support based on moment correction was effective, and a new idea was introduced for an smart and diversified active support.