Conceptual design of a hybrid parallel mechanism for mask exchanging of TMT

Jianping Wang; Hongfei Zhou; Kexuan Li; Zengxiang Zhou; Chao Zhai

doi:10.1117/12.2202374

8 October 2015 Conceptual design of a hybrid parallel mechanism for mask exchanging of TMT

Jianping Wang, Hongfei Zhou, Kexuan Li, Zengxiang Zhou, Chao Zhai

Author Affiliations +

Proceedings Volume 9678, AOPC 2015: Telescope and Space Optical Instrumentation; 967813 (2015) https://doi.org/10.1117/12.2202374
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Mask exchange system is an important part of the Multi-Object Broadband Imaging Echellette (MOBIE) on the Thirty Meter Telescope (TMT). To solve the problem of stiffness changing with the gravity vector of the mask exchange system in the MOBIE, the hybrid parallel mechanism design method was introduced into the whole research. By using the characteristics of high stiffness and precision of parallel structure, combined with large moving range of serial structure, a conceptual design of a hybrid parallel mask exchange system based on 3-RPS parallel mechanism was presented. According to the position requirements of the MOBIE, the SolidWorks structure model of the hybrid parallel mask exchange robot was established and the appropriate installation position without interfering with the related components and light path in the MOBIE of TMT was analyzed. Simulation results in SolidWorks suggested that 3-RPS parallel platform had good stiffness property in different gravity vector directions. Furthermore, through the research of the mechanism theory, the inverse kinematics solution of the 3-RPS parallel platform was calculated and the mathematical relationship between the attitude angle of moving platform and the angle of ball-hinges on the moving platform was established, in order to analyze the attitude adjustment ability of the hybrid parallel mask exchange robot. The proposed conceptual design has some guiding significance for the design of mask exchange system of the MOBIE on TMT.

Citation Download Citation

Jianping Wang, Hongfei Zhou, Kexuan Li, Zengxiang Zhou, and Chao Zhai "Conceptual design of a hybrid parallel mechanism for mask exchanging of TMT", Proc. SPIE 9678, AOPC 2015: Telescope and Space Optical Instrumentation, 967813 (8 October 2015); https://doi.org/10.1117/12.2202374

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Thirty Meter Telescope

SolidWorks

Kinematics

Mathematical modeling

Systems modeling

Analytical research

Dynamical systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years