论文标题
非均匀重力场中自由铰链的无铰链光束的静态和动态分析：重力级别的应用
Static and Dynamic Analyses of Free-Hinged-Hinged-Hinged-Free Beam in Non-Homogeneous Gravitational Field: Application to Gravity Gradiometry
论文作者
论文摘要
提出了对自由铰链的无铰链光束的第一次分析评估，该梁提出用作重力层次测定法的主要感应元件。评估的结果（以四倍体为单位获得）应用于梁的结构，例如形成梁边界条件的铰链位置，仅允许围绕节点轴的自由旋转。故意选择后者是为了最大程度地减少梁的对称游离末端偏转，在重力均匀的力下，同时允许梁的最大可能的镜像对称的自由端偏转，这是由于重力梯度沿其长度沿其长度。柔性三重铰链梁从其未扰动位置的偏转在所有位置都纠缠在包括自由端的所有位置，这允许在任何梁的偏转点上进行同步的机械位移测量值。还首次讨论了制造这种传感元件和相应的错误因素的一些方法。
The first analytical evaluation of free-hinged-hinged-hinged-free beam, proposed to be used as a primary sensing element for gravity gradiometry, is presented. The results of the evaluation, obtained in quadratures, are applied to the beam's structure such as the locations of hinges that form the beam's boundary conditions allowing only free rotations around the nodal axes. The latter are purposely chosen to minimize the beam's symmetric free ends deflection under the uniform force of gravity while simultaneously permitting the beam's maximum possible mirror-symmetric free ends deflection due to a gravity gradient along its length. The flexible triple hinged beam's deflection from its unperturbed position is internally entangled at all locations including free ends and this allows for synchronized mechanical displacements measurements at any beam's deflection point. Some methods of manufacturing such sensing element and the corresponding error factors are also discussed for the first time.
