Optimization design of deep-notch elliptical flexure hinges

Qian, 卢倩 Lu; Wei-qing, 黄卫清 Huang; Yin, 王寅 Wang; Meng-xin, 孙梦馨 Sun

doi:10.3788/ope.20152301.0206

Cited by 7 publications

(2 citation statements)

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“…The kinematic mount, which is designed in this paper, will use the flexu re. It is mainly used to simulate the kinematic pair to achieve statically determinate support structure of space camera and to release the thermal stress caused by the inconsistency of the thermal characteristics of the material of the support structure and the satellite platform when the temperature load of the satellite platform changes [8,9] . The requirement for the kinematic mount is it needs to be as compact as possible; the flexu re will use a single-axis right circu lar flexure h inge [10] .…”

Section: Theory Analysismentioning

confidence: 99%

Design and analysis of the kinematic mount between the space camera and the satellite platform

Sun

Xue

et al. 2023

Advanced Fiber Laser Conference (AFL2022)

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A kinematic mount based on the statically determinate principle is designed using a single-axis right circular flexure hinge. The main role of this support structure is to reduce the influence the satellite platform on the space camera, thereby ensuring the thermal stability of the space camera in orbit. The mathematical model of the compliance of the single-axis right circular flexure hinge is derived based on the Castigliano’s second theorem. According to the index requirements and the compliance equations, the initial structure of kinematic mount is obtained. The optimization design is conducted with the initial structure as the optimization object and the natural frequency as the optimization objective to obtain the optimal structure. The finite element analysis shows that the optimal structure meets the index requirements. Compared with the initial structure, the natural frequency of the optimal structure is increased by 4.2%, the optimal structure in Rx, Ty, and Tz are better than the initial structure 13.3%, 21%, and 12.8%. Experiment verifications of compliance equation C33 of single-axis right circular flexure hinge and the compliance of the bipod are carried out. The experiment results indicate that the compliance equation C33 is correct, and the compliance of the bipod meets the design value. Therefore, it is concluded that all the compliance equations are correct, and the kinematic mount can meet the requirements of the thermal stability of the space camera in orbit.

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Section: Theory Analysismentioning

confidence: 99%

Design and analysis of the kinematic mount between the space camera and the satellite platform

Sun

Xue

et al. 2023

Advanced Fiber Laser Conference (AFL2022)

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“…Kim et al [30] have given an optimal design of a 1-rotational DOF flexure joint with high off-axis stiffness and adequate durability against high thrust force for a 3-DOF H-type stage, which can accomplish rotational motion about the z-axis of a gantry stage. Lu et al [31] used the fuzzy optimization design method to optimize the structural parameters of the elliptical flexure hinge, which greatly improved the performance of the hinge. Gómez et al [32] used a combination of linear strain energy formula, parameter thickness distribution definition and a series of optimization algorithms to optimize the shape of the leaf spring to reduce the range of stress.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of porous flexure hinge based on dual-objective topology optimization of three-dimensional continuum

Qiu

Yue

Zheng

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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This paper properly presents a dual-objective topology optimization mathematical model for compliance and precision performance of flexure hinges based on the three-dimensional continuum topology optimization. The OptiStruct module is applied to solving the problem. And through the post-processing design and parameterization of the results, a single-axis quasi-leaf porous flexure hinge (QLPFH) is generated. The dimensionless empirical equations of the stiffness and rotational center of the hinge are derived by finite element analysis, and the performance of the flexure hinge under different dimensionless parameters is analyzed. Comparing the QLPFH and the leaf flexure hinge (LFH) with the same external space dimensions, the results show that the translational stiffness of the LFH in the desired working direction and the rotational stiffness are much larger than those of the QLPFH. In addition, in the case of the stiffness of the QLPFH is greatly reduced, its precision performance has also been improved to a certain extent. The feasibility of dual-objective design method based on three-dimensional continuum topology optimization is further confirmed.

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Optimization and Experiment of Two-Dimensional Parallel Decoupling Image Stabilization Mechanism

Zhong

Liu

et al. 2020

Int. J. Precis. Eng. Manuf.

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Optimization design of deep-notch elliptical flexure hinges

Cited by 7 publications

References 0 publications

Design and analysis of the kinematic mount between the space camera and the satellite platform

Design and analysis of the kinematic mount between the space camera and the satellite platform

Design and analysis of porous flexure hinge based on dual-objective topology optimization of three-dimensional continuum

Optimization and Experiment of Two-Dimensional Parallel Decoupling Image Stabilization Mechanism

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