Design and analysis of a compact flexure-based precision pure rotation stage without actuator redundancy

Clark, Leon; Shirinzadeh, Bijan; Zhong, Yongmin; Tian, Yanling; Zhang, Dawei

doi:10.1016/j.mechmachtheory.2016.06.017

Cited by 53 publications

(15 citation statements)

References 29 publications

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“…With a few exceptions (e.g., [5,23]), almost identical flexure hinges are used in the same single compliant mechanism. However, the relative rigid-body-based rotation angles φ * for the desired motion of the mechanism are different for the incorporated hinges in most cases.…”

Section: Classification Of Joints With F = 1 By Means Of the Form Of mentioning

confidence: 99%

Modeling and Design of Flexure Hinge-Based Compliant Mechanisms

Linß¹,

Henning²,

Zentner³

2019

Kinematics - Analysis and Applications

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A compliant mechanism gains its mobility fully or partially from the compliance of its elastically deformable parts rather than from conventional joints. Due to many advantages, in particular the smooth and repeatable motion, monolithic mechanisms with notch flexure hinges are state of the art in numerous precision engineering applications with required positioning accuracies in the low micrometer range. However, the deformation and especially motion behavior are complex and depend on the notch geometry. This complicates both the accurate modeling and purposeful design. Therefore, the chapter provides a survey of different methods for the general and simplified modeling of the elasto-kinematic properties of flexure hinges and compliant mechanisms for four hinge contours. Based on nonlinear analytical calculations and FEM simulations, several guidelines like design graphs, design equations, design tools, or a geometric scaling approach are presented. The obtained results are analytically and simulatively verified and show a good correlation. Using the example of a path-generating mechanism, it will be demonstrated that the suggested angle-based method for synthesizing a compliant mechanism with individually shaped hinges can be used to design high-precise and large-stroke compliant mechanisms. The approaches can be used for the accelerated synthesis of planar and spatial flexure hinge-based compliant mechanisms.

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Section: Classification Of Joints With F = 1 By Means Of the Form Of mentioning

confidence: 99%

Modeling and Design of Flexure Hinge-Based Compliant Mechanisms

Linß¹,

Henning²,

Zentner³

2019

Kinematics - Analysis and Applications

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“…The first level of amplification is carried by a lever mechanism, and then, the second level of amplification is realized by the two parallelogram four-bar linkages, which can be considered as a compound half-bridge amplifier. Clark et al [74] designed a pure rotation stage with the use of a bridge amplifier and two three-level lever amplifiers. Zhang et al [55] and Tzou et al [75] both used two lever amplifiers in symmetry to obtain the amplified stroke, and then, a half-bridge amplifier was used to generate linear motion.…”

Section: Hybrid-type Amplifiermentioning

confidence: 99%

Survey on Recent Designs of Compliant Micro-/Nano-Positioning Stages

2018

Actuators

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Micromanipulation is a hot topic due to its enabling role in various research fields. In order to perform a high precision operation at a small scale, compliant mechanisms have been proposed and applied for decades. In microscale manipulation, micro-/nano-positioning is the most fundamental operation because a precision positioning is the premise of subsequent operations. This paper is concentrated on reviewing the state-of-the-art research on complaint micro-/nano-positioning stage design in recent years. It involves the major processes and components for designing a compliant positioning stage, e.g., actuator selection, stroke amplifier design, connecting scheme of the multi-DOF stage and structure optimization. The review provides a reference to design a compliant micro-/nano-positioning stage for pertinent applications.

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“…These hinges possess notable benefits such as no hysteresis, no friction losses, no need for lubrication, and ease of fabrication [1][2][3][4][5][6][7]. Therefore, flexure hinges have been widely used in various areas, such as automobile and aviation industries, inertial navigation industries, biomedical industries, computers and fiberoptics industries, and so on [8][9][10][11][12][13]. These hinges are the basic elements of the flexure-based mechanisms, which can be applied to a wide range of applications.…”

Section: Introductionmentioning

confidence: 99%

Empirical compliance equations for conventional single-axis flexure hinges

2019

SN Appl. Sci.

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In consideration of the stress concentration, unified compliance equations for conventional single-axis hinges are presented. The relationship between the stress concentration and the compliance of corner-filleted flexure hinges is first analyzed. Considering the stress concentration, coupled with a wide range of geometrical parameters, empirical compliance equations for conventional flexure hinges, are then obtained by using the exponential model. Subsequently, the proposed equations are unified. To verify the validity and accuracy of these equations, the characteristics of a bridge-type flexure-based mechanism are then analyzed by the proposed equations and finite element analysis, respectively. The results of compliances and displacement amplification ratios obtained by these two methods are in good agreement. It demonstrates that the empirical compliance equations could be obtained by exponential model, and these equations can be unified.

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Design and analysis of a compact flexure-based precision pure rotation stage without actuator redundancy

Cited by 53 publications

References 29 publications

Modeling and Design of Flexure Hinge-Based Compliant Mechanisms

Modeling and Design of Flexure Hinge-Based Compliant Mechanisms

Survey on Recent Designs of Compliant Micro-/Nano-Positioning Stages

Empirical compliance equations for conventional single-axis flexure hinges

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