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This paper carries out the elasto-dynamic analysis of a novel 2 degrees-of-freedom (DoF) rotational parallel mechanism (RPM) with an articulated travelling platform by means of kineto-elasto dynamic method. The architecture of the proposed 2-DoF RPM is firstly described, and then its kinematic analysis is carried out by closed-loop vector method. On the basis of finite element analysis, the elasto-dynamic...
Thermal deformation of water-cooling mirror with straight flow channels is investigated using a coupled thermo-mechanical finite element model. A new optimized design method and a novel structure for the mirror are proposed to alleviate the influence of thermal deposition on the optical performance. A comparative analysis of the temperature rise and thermal deformation of the mirror surface before...
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