Improved inertial stick-slip movement performance via driving waveform optimization

In this work, a trans-scale precision positioning stage without guideway based on the inertial stick-slip driving is proposed, which can provide nano-scale resolution ratio and output long-range motion. The stage consists of an encapsulated piezoelectric actuator, a connection block, a base, a pair of ceramic bars, and magnets, and the volume is 25 mm × 17 mm × 13.5 mm. The structure and the principle are introduced in detail. To investigate the locomotion characteristics, a prototype is manufactured, and a series of experiments are carried out. The velocity can reach 13 mm/s when the driving frequency is 2.5 kHz and the resolution is 2 nm. The experimental results confirm that the prototype based on the inertial stick-slip driving is valid through magnets. The good linear relationships exist between the displacement curves and time under various driving voltages and frequencies.

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“…In idea case, the maximum step displacement is S step in one cycle [15].

S_{normalStep} = 2 \times M_{i} \times A_{p} / false(M_{i} + M_{m} false)

…”

Section: Structures and Operating Principlementioning

confidence: 99%

Trans‐scale precision positioning stage without guideway based on inertial stick–slip driving

Zhong

Zhu

Zeng

et al. 2019

Micro & Nano Letters

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“…Additionally, the two superposed sines waveform and sine waveform usually excite the actuators for driving in the resonance state to improve the output power (Bansevicius and Blechertas, 2008;Chu et al, 2016;Lee et al, 2007;Nishimura et al, 2012;Pan et al, 2019;Suzuki et al, 2012;Yu et al, 2020). In many studies, the waveforms were introduced buffer stages at the rising or falling edge (Fan et al, 2019;Liu et al, 2019a;Qin et al, 2019c;Tang et al, 2020;Tian et al, 2019;Wang and Lu, 2012;Yang et al, 2019Yang et al, , 2020bZhong et al, 2019aZhong et al, , 2019bZhong et al, , 2020Zhu et al, 2018), see Figure 2(h); the works of Wang et al and Zhong et al stated that the waveforms introduced the buffer stages got better driving performance, including step displacement and speed, which are presented in Table 1. This is owing to the creep characteristics of piezoelectric transducers, and a proper buffer stage is helpful to make them elongate more fully and contract more effectively, so the waveform with buffer stage is often used in practical applications as well.…”

Section: Brief Introduction Of the Excitation Signalmentioning

confidence: 99%

Piezoelectric stick-slip actuators with flexure hinge mechanisms: A review

Qiao

et al. 2022

Journal of Intelligent Material Systems and Structures

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Piezoelectric stick-slip actuators (PSSAs) are famous for ultimate working condition adaptability, simple structure, and positioning accuracy. To meet the demand of industrial application, lots of PSSAs designed with flexure hinge mechanisms (FHMs-PSSAs) have been developed to realize the requirements of translational motion, rotational motion, multi-degree-of-freedom (multi-DOF) motion. The output performance of the FHMs-PSSAs has been greatly improved, including load capacity, speed, and accuracy; moreover, some approaches to solve the problem of the backward motion are provided as well. In this work, the working principle of FHMs-PSSAs is introduced, and the excitation signals applicable to FHMs-PSSAs are summarized. Based on the current research and development status, the progress of structure design of FHMs-PSSAs is introduced in accordance with translatory FHMs-PSSAs, rotary FHMs-PSSAs, and multi-DOF FHMs-PSSAs. Additionally, the developed analysis methods and design schemes to improve the performance are introduced, including theoretical analysis methods, consistency scheme of forward and reverse performance, suppression scheme of the backward motion, and improvement scheme of positioning accuracy. The significance of this work can be regarded as a further supplement to the previous review articles on the PSSAs, which will provide a reference and guidance for the future development of FHMs-PSSAs.

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“…The application of stick-slip combines the friction and inertial working principle. Recommended literatures can be found in many references including [27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Parallel Manipulation Based on Stick-Slip Motion of Vibrating Platform

Mayyas

2020

Robotics

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The majority of the industrial material handling mechanisms used in the manipulation or assembly of mesoscale objects are slow and require precision programming and tooling, mainly because they are based on sequential robotic pick-n-place operations. This paper presents problem formation, modeling, and analysis of a sensorless parallel manipulation technique for mimicking real-systems that transfer mesoscale objects based on the vibration of inline-feeder machines. Unlike common stick-slip models that utilize a “mass-on-moving-belt” and avoid totality of the motion, the research obtains differential equations in order to describe the combined physics of stick-slip dynamics of an object traveling along an oscillating platform under smooth and dry friction conditions. The nonlinear dynamics are solved numerically to explain the effect of system parameters on the stick-slip motion. The research provides empirical models based on frequency-analysis identification to describe the total linear speed of an object to an input force. The results are illustrated and tested by time–response, phase plots, and amplitude response diagrams, which compare very favorably with results obtained by numerical simulation of the equation of motion, and this suggests that the vibration of the platform is independent of stick-slip motion when the mass of the object being transported is small relative to the mass of the system.

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Improved inertial stick-slip movement performance via driving waveform optimization

Cited by 20 publications

References 14 publications

Trans‐scale precision positioning stage without guideway based on inertial stick–slip driving

Trans‐scale precision positioning stage without guideway based on inertial stick–slip driving

Piezoelectric stick-slip actuators with flexure hinge mechanisms: A review

Parallel Manipulation Based on Stick-Slip Motion of Vibrating Platform

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