A new topology optimization method for planar compliant parallel mechanisms

Jin, Mohui; Zhang, Xianmin

doi:10.1016/j.mechmachtheory.2015.08.016

Cited by 62 publications

(26 citation statements)

References 40 publications

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“…To generate effective actuation, compliant mechanisms have to spatially pattern their stiffness characteristics so that they can be stimulated by external pressure or forces to produce desired deformations. While a wide variety of compliant mechanisms exist, the studies pertaining to high‐precision machines and microelectromechanical systems (MEMs) have been well discussed and reviewed, with considerable focus toward the topological optimization of continuum structures . Thus, here we will focus primarily on relatively new pressure‐driven soft actuators that are employed for soft robotic applications.…”

Section: Pressure‐driven Soft Actuatorsmentioning

confidence: 99%

Soft Actuators for Small‐Scale Robotics

et al. 2016

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This review comprises a detailed survey of ongoing methodologies for soft actuators, highlighting approaches suitable for nanometer- to centimeter-scale robotic applications. Soft robots present a special design challenge in that their actuation and sensing mechanisms are often highly integrated with the robot body and overall functionality. When less than a centimeter, they belong to an even more special subcategory of robots or devices, in that they often lack on-board power, sensing, computation, and control. Soft, active materials are particularly well suited for this task, with a wide range of stimulants and a number of impressive examples, demonstrating large deformations, high motion complexities, and varied multifunctionality. Recent research includes both the development of new materials and composites, as well as novel implementations leveraging the unique properties of soft materials.

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Section: Pressure‐driven Soft Actuatorsmentioning

confidence: 99%

Soft Actuators for Small‐Scale Robotics

et al. 2016

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“…(1) The first distinction is synthesis design of compliant mechanisms by employing the rigid-body-replacement method [21,133], building block approach [31,32], screw theory [134,135], FACT method [33,34] or topological optimization technique [22][23][24][25][26][27][28][29][30]. In the case of the rigid-bodyreplacement method, compliant mechanisms are designed through creating the kinematic model of a basic rigid-link mechanism and then replacing rigid joints with flexure hinges, while the conceptual configuration is searched without a priori knowledge in the topological optimization.…”

Section: Distinctionmentioning

confidence: 99%

“…In this paper, key concepts and recent advances on the state-of-the-art kinetostatic and dynamic modeling approaches for compliant mechanisms involving small and large deflections are surveyed, compared, and summarized. Details of synthesis methods for compliant mechanisms, such as topology optimization [22][23][24][25][26][27][28][29][30], building block approach [31,32], freedom and constraint topology (FACT) method [33,34], are out of the scope of this paper and will not be discussed in detail. Extensive studies can be found in Refs.…”

Section: Introductionmentioning

confidence: 99%

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Kinetostatic and Dynamic Modeling of Flexure-Based Compliant Mechanisms: A Survey

Ling

Howell

Cao

et al. 2020

Applied Mechanics Reviews

165

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Flexure-based compliant mechanisms are becoming increasingly promising in precision engineering, robotics, and other applications due to the excellent advantages of no friction, no backlash, no wear, and minimal requirement of assembly. Because compliant mechanisms have inherent coupling of kinematic-mechanical behaviors with large deflections and/or complex serial-parallel configurations, the kinetostatic and dynamic analyses are challenging in comparison to their rigid-body counterparts. To address these challenges, a variety of techniques have been reported in a growing stream of publications. This paper surveys and compares the conceptual ideas, key advances, and applicable scopes, and open problems of the state-of-the-art kinetostatic and dynamic modeling methods for compliant mechanisms in terms of small and large deflections. Future challenges are discussed and new opportunities for extended study are highlighted as well. The presented review provides a guide on how to select suitable modeling approaches for those engaged in the field of compliant mechanisms.

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“…This research demonstrated the reasonableness of bridge type amplifiers. Jin et al [133] directly defined the design domain of XY and XYθ parallel stages (Figure 10c,d) and then fabricated and tested the prototypes with optimal results. …”

Section: Topology Optimizationmentioning

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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A new topology optimization method for planar compliant parallel mechanisms

Cited by 62 publications

References 40 publications

Soft Actuators for Small‐Scale Robotics

Soft Actuators for Small‐Scale Robotics

Kinetostatic and Dynamic Modeling of Flexure-Based Compliant Mechanisms: A Survey

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

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