Abstract
The Rigid Clamp Band Connection Device (RCBCD) is a novel satellite-rocket connection method adapted to the heavy lift trend of the launch vehicle. The static analysis model for the Rigid Clamp Band (RCB) and the Docking Ring (DR) under preloading state is established, and the structural strength and connection stiffness characteristics under the axial loading are analyzed, and the axisymmetric equivalent and parametric modeling techniques are combined to optimize the section shape parameter, which improves the overall connection performance. The results show that the structural stress concentrated on the "line-to-face" contact position between RCB and DR. Increasing the axial dimension of RCB, reducing the V-type angle and deepening the occlusion depth of RCB and DR can effectively improve the connection rigidity of RCB. By optimizing the section shape, the connection performance of RCBCD can be improved by above 70% under the structural strength and mass constraints.
Highlights
Journal of Vibration and Control, 2017, 33(9) : 1480⁃1494 [11] 武新峰,刘观日,雷勇军,等. 基于参数化建模的包带式星箭连接结构优化设计[ J] . 国防科技大学学报, 2013, 35( 5) : 6⁃12 WU Xingfeng, LIU Guanri, LEI Yongjun, et al Optimization Design of Clamp Band System Based on Parametric Modeling[ J]
The Rigid Clamp Band Connection Device ( RCBCD) is a novel satellite⁃rocket connection method adap⁃ ted to the heavy lift trend of the launch vehicle
The results show that the structural stress concentrated on the " line⁃to⁃face" contact position between RCB and DR
Summary
作用下刚性包带装置静力学分析模型,如图 3 所示。 在 MSC.Patran / Marc 软件环境下,按部件分别建立 上端框、下端框和刚性包带模型,并根据物理连接关 系将三者组合为整体,并依次设立上端框、下端框和 包带之间的接触配合对。 包带与端框均为铝合金材 料( 牌号 2Al4T6) ,采用双线性弹塑性模型模拟其本 构特性,其中弹性模量为 71 GPa,泊松比为 0.33,最 大延伸率为 10%,屈服和强度极限分别为 375 MPa 和 450 MPa。 量,其中 YBD 包括 a 至 e 等 5 个截面参数;YSDK 包 Ïïa2 + ( b - c) tanf2 + d + btanf2 - 2.09tanf2 > a / 2 Ïïa2 + b2tanf2 + (1.78 + g / cos22.75° - c2) /
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