Design of truss adjusting mechanism for secondary mirror of large aperture telescope

نویسندگان

چکیده

å¤§å£å¾„æœ›è¿œé•œä¸»æ¬¡é•œä¹‹é—´çš„ç›¸å¯¹ä½å§¿æœ‰ç€éžå¸¸ä¸¥æ ¼çš„è¦æ±‚ï¼Œç”±äºŽä¸»é•œè´¨é‡è¾ƒå¤§ï¼Œå› æ­¤å¸¸å¸¸å°†æ¬¡é•œç³»ç»Ÿè®¾è®¡ä¸ºæœ‰å¤šä¸ªè‡ªç”±åº¦çš„å¯è°ƒæ•´æœºæž„ï¼Œå ¶è°ƒæ•´æ•ˆæžœå¯¹æœ›è¿œé•œæˆåƒæœ‰ç€é‡è¦çš„å½±å“ã€‚ä¸ºäº†é™ä½Žæœ›è¿œé•œçš„æ•´ä½“é«˜åº¦ï¼Œå¯¹æ¬¡é•œæ¡æž¶å’Œæ¬¡é•œè°ƒæ•´æœºæž„è¿›è¡Œèžåˆï¼Œè®¾è®¡äº†ä¸€ç§å¯ç”¨äºŽå¤§å£å¾„æœ›è¿œé•œçš„æ¬¡é•œæ¡æž¶è°ƒæ•´æœºæž„ã€‚é¦–å ˆå¯¹æ‰€è®¾è®¡çš„è°ƒæ•´æœºæž„è¿›è¡Œäº†è¯¦ç»†çš„ä»‹ç»ï¼Œä¹‹åŽå¯¹æ‰€è®¾è®¡çš„æœºæž„è¿›è¡Œé™åŠ›å­¦å’Œæ¨¡æ€åˆ†æžï¼Œç„¶åŽå¯¹è¯•éªŒæ ·æœºè¿›è¡Œè¿åŠ¨å­¦æ€§èƒ½æµ‹è¯•ã€‚æ‰€è®¾è®¡çš„æœºæž„åœ¨Z方向的移动行程可达±5 mm,绝对定位精度优于16 μm,在X/Y方向的偏转行程可达±0.574°,绝对定位精度优于6.4″。满足大口径望远镜对次镜调整精度和行程的要求。

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ژورنال

عنوان ژورنال: Guangxue jingmi gongcheng

سال: 2023

ISSN: ['1004-924X']

DOI: https://doi.org/10.37188/ope.20233107.1043