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

Qiu, Lifang; Yue, Xin; Zheng, Lin; Liu, Yanlin

doi:10.1007/s40430-020-02312-7

Cited by 7 publications

(5 citation statements)

References 41 publications

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“…According to equations ( 29)- (36), the coupling relationship between F in , F out , and e out can be obtained as:…”

Section: Input-output Relationship Of the Cdammentioning

confidence: 99%

“…This quasi-V flexure hinge had a higher rotation accuracy compared with the filleted-V flexure hinge. Similarly, Qiu et al [36] designed a single-axis flexure hinge with a novel threedimensional configuration by applying the three-dimensional continuum topology optimisation theory and taking the maximum compliance along the deflection as the objective function; compared with the leaf-type flexure hinge, the rotation range herein was increased by 300%.…”

Section: Introductionmentioning

confidence: 99%

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A novel bridge-type compliant displacement amplification mechanism under compound loads based on the topology optimisation of flexure hinge and its application in micro-force sensing

Chen,

Kang,

et al. 2023

Smart Mater. Struct.

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The design and modelling of bridge-type compliant displacement amplification mechanisms (CDAMs) are key components in precision engineering. In this study, a bridge-type CDAM under compound loads with an optimum flexure hinge configuration is designed, analysed, and tested. For the case when the flexure hinge configuration is unknown, the internal force distribution for a bridge-type CDAM under compound loads is analysed, and the topology of the flexure hinge is optimised. By applying different volume constraints, the optimised flexure hinge configurations are all V-shaped. Subsequently, a static model of the V-shaped flexure hinge is established. For a bridge-type CDAM with V-shaped flexure hinges, the compliance matrix of the flexure hinge is combined with the relationship among the local compliance matrices in a serial mechanism; consequently, the analytical relationship between the output displacement, output force, and input force is derived. The CDAM is parametrically optimised to further improve the output performance. Simulations and experiments verify the topology optimisation result, static model, and parametric optimisation result. Finally, the CDAM and its static model are applied to the tensile manipulation and micro-force sensing in a microfiber tensile test.

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“…According to equations ( 29)- (36), the coupling relationship between F in , F out , and e out can be obtained as:…”

Section: Input-output Relationship Of the Cdammentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel bridge-type compliant displacement amplification mechanism under compound loads based on the topology optimisation of flexure hinge and its application in micro-force sensing

Chen,

Kang,

et al. 2023

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Then, the new flexure hinge was compared with other types of hinges demonstrating that the MCFH have greater compliance. Then, Qiu et al [221] presented a dual-objective Topology Optimization process for maximization of compliance and precision performance of flexure hinges based on 3D continuum Topology Optimization. The resulting topology, shown in Figure 15(b-i), was further postprocessed and parameterized generating the single-axis quasi-leaf porous flexure hinge (QLPFH) shown in Figure 15(b-ii).…”

Section: Topology Optimization In Compliant Systems As Flexure Elementsmentioning

confidence: 99%

“…2021, Elsevier), (b) i-optimal topology and ii-final shape (Adapted from ref. [221]. 2020, Springer).…”

Section: Topology Optimization In Compliant Systems As Flexure Elementsmentioning

confidence: 99%

A Review on Tailoring Stiffness in Compliant Systems, via Removing Material: Cellular Materials and Topology Optimization

2021

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Cellular Materials and Topology Optimization use a structured distribution of material to achieve specific mechanical properties. The controlled distribution of material often leads to several advantages including the customization of the resulting mechanical properties; this can be achieved following these two approaches. In this work, a review of these two as approaches used with compliance purposes applied at flexure level is presented. The related literature is assessed with the aim of clarifying how they can be used in tailoring stiffness of flexure elements. Basic concepts needed to understand the fundamental process of each approach are presented. Further, tailoring stiffness is described as an evolutionary process used in compliance applications. Additionally, works that used these approaches to tailor stiffness of flexure elements are described and categorized. Finally, concluding remarks and recommendations to further extend the study of these two approaches in tailoring the stiffness of flexure elements are discussed.

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“…The method is implemented effectively in different benchmarks. Recently, Qiu et al [35] presented a multi-objective optimization process consisting of compliance and precision of continuum hinges based on threedimensional examples. The quality of the results presents the effectiveness of the method.…”

Section: Introductionmentioning

confidence: 99%

Multi-material topology optimization of compliant mechanisms using regularized projected gradient approach

Rostami

Marzbanrad

2020

J Braz. Soc. Mech. Sci. Eng.

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In this article, the identification of optimal topologies for multi-material compliant mechanisms based on the regularized projected gradient approach is presented and analyzed. The monolithic structure of compliant mechanisms makes them suitable to be used in microelectromechanical systems to transfer load and force. The use of additive manufacturing technologies makes it possible to build multi-material structures. However, a proper design optimization approach must be considered to design multi-material mechanisms as well. In this article, the solid isotropic material with a penalization (SIMP) material interpolation scheme is used to parameterize the continuum design domain. The perimeter penalization approach is utilized to remove the checkerboard patterns and scatters in optimal designs. To handle the volume equality constraint, the regularized constraint projection strategy is utilized. Some benchmark problems are considered to analyze the performance of the method.

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

Cited by 7 publications

References 41 publications

A novel bridge-type compliant displacement amplification mechanism under compound loads based on the topology optimisation of flexure hinge and its application in micro-force sensing

A novel bridge-type compliant displacement amplification mechanism under compound loads based on the topology optimisation of flexure hinge and its application in micro-force sensing

A Review on Tailoring Stiffness in Compliant Systems, via Removing Material: Cellular Materials and Topology Optimization

Multi-material topology optimization of compliant mechanisms using regularized projected gradient approach

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