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首页> 外文会议>ICO20: Optical Devices and Instruments >Analysis movement feature about spindle and relevant points on stressed lap
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Analysis movement feature about spindle and relevant points on stressed lap

机译：分析主轴的受力运动和受压搭接点的相关点

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Niaot(Nanjing Institute of Astronomical Optics & Technology) had made a stressed lap and finished a Φ910mm, F/2 paraboloid, and also analyzed its feature about deformation and tilt of stressed lap on proceeding condition. In this paper, according to the spindle tilt and no tilt, assuming the spindle moving velocity along the crossbeam, or the spindle tilt velocity around its tilt shaft, or apex of lap moving tangential velocity along the paraboloid surface is uniform, Author analyzes the movement feature of each relevant point and the removal efficiency for mirror on each condition for φ2200mm, F/2, F/1 and F/0.6 paraboloid. And proceed to consider: when the lap on tilt condition, the normal pressure on mirror will change in succession and it will reduce removal efficiency. So Author put forward another linkage moving type to reduce its effect, it will become a uniform removal efficiency from mirror center to edge on one period. On spindle no tilt class, the rotative velocity of lap isn't uniform, in this paper author also analyzes the difference of their angle and angular speed between spindle and lap, and how to correct this error. All these analyses is just for stressed lap working on axial symmetry paraboloid mirror. On removal proceeding, all movements, including the spindle translation on horizontal crossbeam and on vertical slider; the spindle ti the spindle rotation; the lap deformation etc., must work together to become a linkage under computer control. It is to say, in any twinkling, all relevant points must be on specific position and have specific velocity and specific acceleration. So this analysis is the mathematical basis for using stressed lap too.
机译：Niaot（南京天文光学技术研究所）制作了一个受力圈，并完成了一个Φ910mmF / 2抛物面，并分析了其在前进条件下与受力圈的变形和倾斜有关的特征。在本文中，根据主轴倾斜和不倾斜的情况，假设主轴沿横梁的移动速度或主轴围绕其倾斜轴的倾斜速度，或沿抛物面的搭接运动切向速度的顶点均等，作者分析了该运动在φ2200mm，F / 2，F / 1和F / 0.6抛物面的每种条件下，每个相关点的特征以及镜的去除效率。并继续考虑：当在倾斜状态下搭接时，反光镜上的正常压力会连续变化，这会降低去除效率。因此，作者提出了另一种联动移动类型以减小其影响，它将在一个周期内从镜中心到边缘成为均匀的去除效率。在无倾角主轴上，搭接的旋转速度不均匀，本文还分析了主轴和搭接之间角和角速度的差异，以及如何纠正该误差。所有这些分析仅适用于在轴向对称抛物面反射镜上工作的应力搭接。在拆卸过程中，所有运动，包括水平横梁和垂直滑块上的主轴平移；主轴倾斜主轴旋转膝部变形等，必须共同作用以在计算机控制下成为一个联动装置。就是说，在任何闪烁中，所有相关点都必须在特定位置，并具有特定速度和特定加速度。因此，该分析也是使用应力搭接的数学基础。

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