Introduction to Compliant Mechanisms and Design Methods

Zhang, Xianmin; Zhu, Benliang

doi:10.1007/978-981-13-0432-3_1

Cited by 2 publications

(3 citation statements)

References 115 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…which leads to S f ≈ 1.9 > 1, demonstrating an infinite fatigue life of the optimized mechanism [21].…”

Section: B Finite Element Verificationmentioning

confidence: 96%

“…To investigate the fatigue behavior, the stress is assumed to be harmonically varied between 0 and σ m . Considering the fatigue stress concentration factor K f = 1.4, ultimate strength σ u = 1274 MPa, and endurance limit σ e =700 MPa for the steel [39], the safety factor S f is determined by [21]…”

Section: B Finite Element Verificationmentioning

confidence: 99%

“…Since the parasitic motion vertical to the main driving direction was not constrained for this configuration, the axisymmetry structure with double parallelogram mechanisms was then adopted in a more popular way to guide the tool [15]- [18]. With this design, taking advantage of the developed analytical model or finite element simulation, the multi-objective optimization was conducted to derive the optimal structural dimensions regarding the sufficient stroke, long fatigue life, high stiffness, and high working bandwidth [19]- [21]. However, as the PEA is directly connected with the end-effector holding the tool for this axisymmetry FTS, it is a little bit difficult to arrange the displacement sensor for motion capturing without affecting its working performance.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design and Control of a Piezoelectrically Actuated Fast Tool Servo for Diamond Turning of Microstructured Surfaces

Zhu

Chen

Huang

et al. 2020

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

This paper reports on the mechanism design, dimension optimization, closed-loop control, and practical application of a piezoelectrically actuated fast tool servo (FTS) for the diamond turning of micro-structured surfaces. With the mechanism, a finite element based analytical model is developed to theoretically relate the working performance with its structural dimensions. Considering its application for micro/nanocutting, the structural dimensions of the mechanism are deliberately determined through evolutionarily optimizing a comprehensive objective. To ultra-finely track the cutting trajectory with a high bandwidth, a PID controller together with the dynamics inversion based feedforward compensation is optimally designed with assistance of the Nyquist diagram, and a disturbance observer is further employed to compensate for the inherent hysteresis nonlinearity as well as external cutting force disturbances. Both open-loop and closed-loop experimental tests on the prototype suggest that a stroke of 15 µm and a closed-loop bandwidth of 1730 Hz are achieved. Taking advantage of the newly developed FTS, two typical micro-structured surfaces are ultra-precisely turned, well demonstrating the effectiveness of the FTS.

show abstract

“…which leads to S f ≈ 1.9 > 1, demonstrating an infinite fatigue life of the optimized mechanism [21].…”

Section: B Finite Element Verificationmentioning

confidence: 96%

Section: B Finite Element Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Control of a Piezoelectrically Actuated Fast Tool Servo for Diamond Turning of Microstructured Surfaces

Zhu

Chen

Huang

et al. 2020

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

show abstract

A starfish-inspired 4D self-healing morphing structure

Raman,

Labisch,

Dirks

2024

Sci Rep

View full text Add to dashboard Cite

Inspired by the starfish's unique ability to achieve flexibility and posture-holding with minimal energy expenditure, we present a novel bioinspired morphing structure. Our two-component design, consisting of a thermoplastic mesh and elastomeric jacket, effectively mimics the functions of the starfish's ossicles, mutable collagenous tissues, and derma. This structure exhibits a remarkable combination of self-healing, time-dependent shape memory, and self-posture-holding properties. Systematic variations in mesh geometry demonstrate precise control over structural stiffness and thermal response, enabling customization for specific applications. The structure's scalability and ease of fabrication further enhance its adaptability. We experimentally demonstrate the potential of our biomimetic morphing structure using several prototypes. This work lays the foundation for developing a new type of versatile morphing structures with applications in diverse fields, including robotics, biomedical devices, and adaptive structures.

show abstract

Introduction to Compliant Mechanisms and Design Methods

Cited by 2 publications

References 115 publications

Design and Control of a Piezoelectrically Actuated Fast Tool Servo for Diamond Turning of Microstructured Surfaces

Design and Control of a Piezoelectrically Actuated Fast Tool Servo for Diamond Turning of Microstructured Surfaces

A starfish-inspired 4D self-healing morphing structure

Contact Info

Product

Resources

About