Design and Performance Analysis of a Micro-Displacement Worktable Based on Flexure Hinges

Lü, Yan; Jiang, Anna; Jiang, Feng; Liu, Guangda; Wang, Fuzeng; Wu, Xian

doi:10.3390/mi13040518

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…The finite element analysis technique is an important means of modern engineering research [ 25 ] and improving the quality of human life [ 26 ]. Since the development of CFD technology, it has been widely used in the analysis of fluid flow, heat conduction, and other related physical phenomena.…”

Section: Performance Analysis Based On Cfd Simulationmentioning

confidence: 99%

Performance Study of Portable Semiconductor Refrigeration Device Based on CFD Simulation

et al. 2023

Self Cite

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Since the summer of 2022, the whole world has suffered the abnormal weather phenomena of high ambient temperature. Equipment for refrigeration, particularly portable refrigeration equipment, is crucial for personal protection in high−temperature environments, but cooling performance and miniaturization have been challenging issues. A portable air conditioner based on a semiconductor refrigeration device for human body cooling was developed. The total weight of the device is 450 g. The overall power consumption of the device is 82 W and the energy consumption ratio of semiconductor cooling plate is 0.85. The semiconductor refrigeration technology is based on the Peltier effect, supplemented by a DC fan to send the cooling air out to a specified position or zone. The structural parts are manufactured by 3D printing technology to make the overall size of the device more compact. The air volume and cooling performance of the device were analyzed by computational fluid dynamics simulation and the temperature distribution was measured by an infrared thermal imager and other instruments, and the measured results agreed with the CFD simulation results. The test ambient temperature was 20 °C. The measurement results showed that the wind speed of the hot air outlet was 6.92 m/s and that of the cold air outlet was 8.24 m/s. The cold air surface temperature reached a stable state of 13.9 °C in about 4 min, while the hot air surface temperature reached a stable state of 47.2 °C.

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Section: Performance Analysis Based On Cfd Simulationmentioning

confidence: 99%

Performance Study of Portable Semiconductor Refrigeration Device Based on CFD Simulation

et al. 2023

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“…The micro-displacement amplification mechanism mainly includes lever amplification [ 24 ], a bridge amplification mechanism [ 25 ], a Scott–Russell amplification mechanism, and so on [ 26 , 27 , 28 ]. The lever mechanism has a flexible structure and high amplification, but the coupling motion is serious, making the actual displacement amplification smaller than the theoretical displacement amplification [ 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of XY Large Travel Micro Stage Based on Secondary Symmetric Lever Amplification

Zhang,

Xiong,

Pan

et al. 2023

Micromachines

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This study presents a newly developed piezoelectric drive mechanism for the purpose of designing, analyzing, and testing a micro-positioning platform driven by piezoelectric actuators. The platform incorporates a piezoelectric ceramic actuator and a flexible hinge drive and features a symmetrical two-stage lever (STSL) amplification mechanism and a parallelogram output structure. The implementation of this design has led to notable enhancements in the dynamic properties of the platform, thereby eliminating the undesired parasitic displacement of the mechanism. An analytical model describing the fully elastic deformation of the platform is established, which is further verified by finite element simulation. Finally, the static and dynamic performances of the platform are comprehensively evaluated through experiments. A closed-loop control strategy is adopted to eliminate the nonlinear hysteresis phenomenon of the piezoceramic actuator (PEA). The experimental results show that the piezoelectric micro-actuator platform has a motion range of 97.84 μm × 98.03 μm; the output coupling displacement error is less than 1%; the resolutions of the two axes are 8.1 nm and 8 nm, respectively; and the x-axis and y-axis trajectory tracking errors are both 0.6%. The piezoelectric micromotion platform has good dynamic properties, precision, and stability. The design has a wide application potential in the field of micro-positioning.

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Design of a Novel Three-Degree-of-Freedom Piezoelectric-Driven Micro-Positioning Platform with Compact Structure

Zhao,

Li,

et al. 2024

Actuators

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In this paper, a novel three-degree-of-freedom piezoelectric-driven micro-positioning platform based on a lever combination compound bridge-type displacement amplification mechanism is proposed. The micro-positioning platform proposed in this paper aims to solve the current problem of the large size and small travel of the three-degree-of-freedom piezoelectric-driven micro-positioning platform. In this paper, a lever combination compound bridge-type displacement amplification mechanism combined with a new biaxial flexible hinge is proposed, the structural dimensions of the lever mechanism and the compound bridge mechanism are optimized, and the amplification multiplier is determined. The maximum output simulation analysis of the micro-positioning platform is carried out by using ANSYS, and the experimental test system is built for verification. The validation results show that the maximum errors between simulation and experiment in the z-direction, rotation direction around x, and rotation direction around y are 64 μm, 0.016°, and 0.038°, respectively, and the corresponding maximum relative errors are 5.6%, 2.4%, and 6.6%, respectively, which proves the feasibility of the theoretical design.

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Design and Performance Analysis of a Micro-Displacement Worktable Based on Flexure Hinges

Cited by 3 publications

References 38 publications

Performance Study of Portable Semiconductor Refrigeration Device Based on CFD Simulation

Performance Study of Portable Semiconductor Refrigeration Device Based on CFD Simulation

Design and Analysis of XY Large Travel Micro Stage Based on Secondary Symmetric Lever Amplification

Design of a Novel Three-Degree-of-Freedom Piezoelectric-Driven Micro-Positioning Platform with Compact Structure

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