Contact mechanics modeling of piezo-actuated stick-slip microdrives

Nguyen, Hau Van; Edeler, Christoph; Fatikow, Sergej

doi:10.1134/s102995991203006x

Cited by 16 publications

(10 citation statements)

References 5 publications

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“…These steps are classically regarded to be composed of a phase of static friction between the driving and the driven part, and a phase of kinetic friction where the two parts slide against each other. Stick-slip actuators are especially suited for miniaturized nanoposition and manipulation systems due to their simple structure and stable working characteristics which offer a theoretically unlimited smooth motion with an inherent fine-positioning capability (Nguyen et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Simple and high-performance stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism

Gao

et al. 2019

Journal of Intelligent Material Systems and Structures

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This article presented a new type of stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism. The key of the driving mechanism was a four-bar mechanism with different minimum thicknesses of right-circle flexure hinges. Combined with a symmetrical indenter, the asymmetrical flexure hinge driving mechanism generated controllable tangential displacement by changing the locking force. Therefore, the simple structured stick-slip piezoelectric actuator achieved considerable improvements especially in output speed and efficiency. In order to obtain improved actuator properties, the minimum thicknesses of asymmetrical flexure hinge driving mechanism, the tangential and normal displacements of the indenter were analyzed and investigated by finite element method. A prototype was fabricated and experiment investigation of the actuator characteristics was presented. Testing results indicated that the actuator achieved the maximum velocity of 15.04 mm/s and its maximum load reached 440 g under a voltage of 100 Vp-p and a frequency of 490 Hz. The maximum efficiency of the actuator was 3.66% with a load of 280 g under a locking force of 5 N and the actuated velocity of 10.17 mm/s.

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Section: Introductionmentioning

confidence: 99%

Simple and high-performance stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism

Gao

et al. 2019

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

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“…The driven part of the stick-slip actuator is driven in small steps through an uninterrupted friction force (Edeler et al, 2011; Hunstig et al, 2013b; Wang et al, 2019d) (static friction force and kinetic friction force) due to its inertia. Stick-slip actuators have a simple structure, stable operation, and inherent precision positioning capability, and are especially suitable for miniaturized nanoposition and manipulation systems (Nguyen et al, 2012; Wang et al, 2019b; Zhu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Design, modeling, and performance of a bidirectional stick-slip piezoelectric actuator with coupled asymmetrical flexure hinge mechanisms

Gao

et al. 2020

Journal of Intelligent Material Systems and Structures

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A stick-slip piezoelectric actuator with bidirectional motion is proposed and measured, which uses coupled asymmetrical flexure hinge mechanisms and symmetrical indenter to generate controllable tangential displacement. The operating principle of the proposed stick-slip actuator is illustrated, and the normal force variation between the stator and slider is analyzed. A dynamic model based on the method of dimensionality reduction is established to simulate the displacement and load capacity. In order to obtain improved actuator properties, the design rules of the coupled flexure hinge mechanisms are discussed, and the tangential and normal displacements of the indenter are investigated by the finite element method. A prototype is fabricated, and the experiment investigation of the actuator characteristics is presented. Testing results indicate that the actuator achieves the maximum output velocity of 10.14 mm/s and its maximum load reaches 1.5 N under a voltage of 100 Vp–p and a frequency of 850 Hz in the positive x-direction. The maximum efficiency of the actuator is 0.57% with a load of 90 g, a locking force of 5 N, and the actuated velocity of 5.48 mm/s. In addition, experimental results confirm the feasibility of the presented model by comparing numerical simulation results.

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“…The Karnopp model is an improved static friction model that provides a simple manner to avoid the detection of zero relative velocity by defining a zero velocity interval. Dynamic friction models, such as such as the LuGre, Leuven, and elastoplastic models, have high accuracy and can explain the presliding, Stribeck, and hysteretic effects, although the definitions of the model parameters are difficult [26][27][28][29][30]. The Karnopp friction model is used for analysis when the precision is low.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Motion Interactions of a 2-DOF Linear Piezoelectric Impact Drive Mechanism with a Single Friction Interface

et al. 2018

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A two-degrees-of-freedom (2-DOF) linear piezoelectric impact drive mechanism (PIDM) is actuated by two independent piezoelectric actuators (PAs). The coupled motion interactions of a two orthogonal DOF linear PIDM with a single friction interface are introduced and analyzed. A complete dynamic model of the 2-DOF PIDM is established with the Karnopp friction model considering the distribution of friction in the x-axis and y-axis. The output displacements of the 2-DOF PIDM and two corresponding independent 1-DOF PIDMs are investigated numerically. When the two input exciting signals of a 2-DOF PIDM have the same driving voltage of 100 V with a duty ratio of 98% at 10 Hz and two 1-DOF PIDMs are driving under the same conditions, the step displacements in the two axes of 2-DOF PIDM are improved compared to the corresponding 1-DOF PIDM. When the two input exciting signals of a 2-DOF PIDM have the same driving voltages of 100 V with a duty ratio of 98% but the driving frequency is 10 Hz in the x-axis and 20 Hz in the y-axis, the results show that the displacement of high frequency achieves a slight decrease and displacement of low frequency shows a large increase compared to the two corresponding 1-DOF PIDMs.

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Contact mechanics modeling of piezo-actuated stick-slip microdrives

Cited by 16 publications

References 5 publications

Simple and high-performance stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism

Simple and high-performance stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism

Design, modeling, and performance of a bidirectional stick-slip piezoelectric actuator with coupled asymmetrical flexure hinge mechanisms

Simulation of Motion Interactions of a 2-DOF Linear Piezoelectric Impact Drive Mechanism with a Single Friction Interface

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