An intelligent computation system for precise assembly of large laser optics

被引：2

作者：

Wang, Hui ^{[1
]}

Zhang, Zheng ^{[1
]}

Xiong, Zhao ^{[2
]}

Liu, Tianye ^{[1
]}

Long, Kai ^{[1
]}

Quan, Xusong ^{[2
]}

Yuan, Xiaodong ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing Key Lab Precis Ultra Precis Mfg Equipment, Beijing, Peoples R China

[2] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang, Peoples R China

来源：

ASSEMBLY AUTOMATION | 2018年 / 38卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Genetic algorithm; Distortion analysis; Large laser optics; Precision assembly; SPECIFICATIONS;

D O I：

10.1108/AA-04-2017-048

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Purpose - It is a huge technical and engineering challenge to realize the precise assembly of thousands of large optics in high power solid-state laser system. Using the 400-mm aperture-sized transport mirror as a case, this paper aims to present an intelligent numerical computation methodology for mounting performance analysis and modeling of large optics in a high-power laser system for inertial confinement fusion (ICF). Design/methodology/approach - Fundamental principles of modeling and analysis of the transport mirror surface distortion are proposed, and a genetic algorithm-based computation framework is proposed to evaluate and optimize the assembly and mounting performance of large laser optics. Findings - The stringent specifications of large ICF optics place very tight constraints upon the transport mirror's assembly and mounts. The operational requirements on surface distortion [peak-to-valley and root mean square (RMS)] can be met as it is appropriately assembled by the close loop of assembly-inspection-optimization-fastening. In the end, the experimental study validates the reliability and effectiveness of the transport mirror mounting method. Originality/value - In the assembly design and mounting performance evaluation of large laser optics, the whole study has the advantages of accurate evaluation and intelligent optimization on nano-level optical surface distortion, which provides a fundamental methodology for precise assembly and mounting of large ICF optics.

引用

页码：524 / 535

页数：12

共 22 条

[1]

[Anonymous], APPL MECH REV

[2]

Barber JR., 2002, ELASTICITY

[3] Laser megajoule optics (I): New methods of optical specification [J].

Bray, M ;

Liard, A ;

Chabassier, G .

OPTICAL FABRICATION AND TESTING, 1999, 3739 :449-460

[4] National Ignition Facility system alignment [J].

Burkhart, S. C. ;

Bliss, E. ;

Di Nicola, P. ;

Kalantar, D. ;

Lowe-Webb, R. ;

McCarville, T. ;

Nelson, D. ;

Salmon, T. ;

Schindler, T. ;

Villanueva, J. ;

Wilhelmsen, K. .

APPLIED OPTICS, 2011, 50 (08) :1136-1157

[5]

Butler S.D., 2015, OPT EXPRESS, V23, P29099

[6]

Hurst P.A., 1997, P SPIE INT SOC OPTIC, P86

[7]

Kramer O., 2017, STUDIES COMPUTATIONA

[8] NIF optical specifications - The importance of the RMS gradient [J].

Lawson, JK ;

Auerbach, JM ;

English, RE ;

Henesian, MA ;

Hunt, JT ;

Sacks, RA ;

Trenholme, JB ;

Williams, WH ;

Shoup, MJ ;

Kelly, JH ;

Cotton, CT .

THIRD INTERNATIONAL CONFERENCE ON SOLID STATE LASERS FOR APPLICATION TO INERTIAL CONFINEMENT FUSION, PTS 1 AND 2, 1999, 3492 :336-343

[9] Power spectral density specifications for high-power laser systems [J].

Lawson, JK ;

Aikens, DM ;

English, RE ;

Wolfe, CR .

SPECIFICATION, PRODUCTION, AND TESTING OF OPTICAL COMPONENTS AND SYSTEMS, 1996, 2775 :345-356

[10]

Li Guihua, 2015, Journal of Mechanical Engineering, V51, P116, DOI 10.3901/JME.2015.11.116

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