High-velocity operation of piezoelectric inertia motors: experimental validation

Hunstig, Matthias; Hemsel, Tobias; Sextro, Walter

doi:10.1007/s00419-014-0940-0

Cited by 16 publications

(25 citation statements)

References 21 publications

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“…It has been measured using different methods: making the slider move against a spring, the force is either determined from the deformation of the spring [61,74,75], or using a load cell connected to the spring [76,77]. Other authors make the slider move directly against a load cell [67,[78][79][80][81], or the force is exerted to a part connected to a load cell instead of a slider [82].…”

Section: Force Generationmentioning

confidence: 99%

“…This method is also suited for non-iterative numerical simulation [87] (pp. [73][74][75][76][77]. It thus appears as an advantageous measurement method for comparing the force generation performance of different inertia motors.…”

Section: Force Generationmentioning

confidence: 99%

“…Recently, it has been shown that running the slider against a spring is a robust method of determining the force generation potential of an inertia motor, providing results independent of the spring stiffness as long it is sufficiently low ( [87] (pp. [73][74][75][76][77], in short form also [77] (p. 7)). This method is also suited for non-iterative numerical simulation [87] (pp.…”

Section: Force Generationmentioning

confidence: 99%

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Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Hunstig

2017

Actuators

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109

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Piezoelectric inertia motors-also known as stick-slip motors or (smooth) impact drives-use the inertia of a body to drive it in small steps by means of an uninterrupted friction contact. In addition to the typical advantages of piezoelectric motors, they are especially suited for miniaturisation due to their simple structure and inherent fine-positioning capability. Originally developed for positioning in microscopy in the 1980s, they have nowadays also found application in mass-produced consumer goods. Recent research results are likely to enable more applications of piezoelectric inertia motors in the future. This contribution gives a critical overview of their historical development, functional principles, and related terminology. The most relevant aspects regarding their design-i.e., friction contact, solid state actuator, and electrical excitation-are discussed, including aspects of control and simulation. The article closes with an outlook on possible future developments and research perspectives.

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Section: Force Generationmentioning

confidence: 99%

Section: Force Generationmentioning

confidence: 99%

Section: Force Generationmentioning

confidence: 99%

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Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Hunstig

2017

Actuators

Self Cite

109

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“…As a result, it exhibits the minimum back-step and thus induces less micro-vibration. The model-based approach has often been used [4,[20][21][22]. In [20], Bergander and Breguet used a method called "signal shaping" to optimize the driving waveform for a linear stick-slip micro-stage.…”

mentioning

confidence: 99%

“…Nevertheless, this method can only be applied for drives having actuators with a relatively low natural frequency. Recently, Hunstig et al [21,22] proposed a novel driving method for a macroscopic stick-slip drive with the actuators' stroke of 27 µm. It is known that the optimized signal allows the drive to operate with very high velocities in the slip-slip regime, while the reachable maximum velocity in stick-slip operation is principally limited.…”

mentioning

confidence: 99%

Improvements of Piezo-Actuated Stick–Slip Micro-Drives: Modeling and Driving Waveform

Nguyen

Mau

Meyer³

et al. 2018

Coatings

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Modeling and waveform optimization are important research topics for piezo-actuated stick-slip micro-drives. In this paper, the dynamics of piezo-actuated stick-slip micro-drives (PASSMDs) are theoretically investigated. We introduce an extended model taking the dynamics of the piezo actuators into account. The model combines the whole macroscopic movement of the drive's runner and actuators and the microscopic behavior of the frictional contacts in a hybrid dynamic simulation. The macroscopic movements are described via Newtonian mechanics, while the microscopic behavior is computed using the method of dimensionality reduction. Two important characteristics of the drive, the critical actuation amplitude and the force generation, are systematically analyzed. The numerical simulation results show a fine agreement with experimental data of the previously published work. The critical actuation amplitude is found to depend on the behavior of the guiding contacts, the dynamics of the actuators and their interaction. Furthermore, a novel driving waveform, which allows us to increase the operational velocity for the drive, is proposed. The waveform is derived by exploiting micro-vibration and considering the dynamic contact status. Simulation results show that the average velocity of the drive is heightened by about 15%. The performance of the drive is therefore improved.

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A fuzzy model predictive controller for stick‐slip type piezoelectric actuators

Cheng

Wang

Qin

2021

Optim Control Appl Methods

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In nano/micro‐positioning applications, stick‐slip type piezoelectric actuators (SSPEAs) are usually employed for a satisfactory performance in both the movement range and the positioning accuracy. Unfortunately, the controller design of SSPEAs is a challenging task, which is seldom studied in the literature. So this article presents an idea of using the fuzzy model predictive control approach for the high‐precision positioning. First, a prototype of the stick‐slip type piezoelectric actuator is designed. Then a Takagi‐Sugeno fuzzy model is established for the entire SSPEA, whose parameters can be further adapted by the recursive estimation approach based on the online measurement. Based on this model, a predictive controller can be designed for SSPEAs. Compared to some existing studies, the proposed fuzzy model directly describes the input–output relationship of the entire SSPEA rather than modeling separately. As a result, the controller can be simplified. Finally, some experiments are conducted on the SSPEA prototype, which demonstrates a satisfactory control performance

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High-velocity operation of piezoelectric inertia motors: experimental validation

Cited by 16 publications

References 21 publications

Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Improvements of Piezo-Actuated Stick–Slip Micro-Drives: Modeling and Driving Waveform

A fuzzy model predictive controller for stick‐slip type piezoelectric actuators

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