A new inertial piezoelectric rotary actuator based on changing the normal pressure

Wen, Jianming; Ma, Jijie; Zeng, Ping; Cheng, Guangming; Zhang, Zhonghua

doi:10.1007/s00542-012-1684-9

Cited by 37 publications

(28 citation statements)

References 20 publications

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“…These motors also work at the boundary of the inertia motor principle defined in Section 4: if the modulation of the normal force is large enough, the inertia in the translatory direction is no longer essential for the function of the motor. This is the case, for example, in the motors by Burisch et al [144] and Wen et al [150], or the vibratory conveyor by Frei [152], which consequently do not require asymmetric excitation signals: if the normal force is reduced to zero in the retraction phase, the motor operates with lift-off instead of sliding.…”

Section: Generation and Variation Of Normal Forcementioning

confidence: 99%

“…This has been realised in moving actuator motors through a suitable geometric design by Rass and Kortschack [112], and by making the actuator exert a force with a certain normal component by Cheng et al [149] and Wen et al [150]. Such a setup can also be used in fixed actuator motors, where a suitable suspension of the slider-as in the motor by Li et al [151]-can reduce the effect of the acceleration on the normal force.…”

Section: Generation and Variation Of Normal Forcementioning

confidence: 99%

See 1 more Smart Citation

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

Hunstig

2017

Actuators

121

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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: Generation and Variation Of Normal Forcementioning

confidence: 99%

Section: Generation and Variation Of Normal Forcementioning

confidence: 99%

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

Hunstig

2017

Actuators

121

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“…In terms of inertial actuators, two common control approaches to 1-DOF motion are used, namely, signal-control type [25] and friction-control type [26]. The former type usually utilizes an asymmetrical waveform excitation signal to generate unequal impact forces in contrary direction.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric inertial rotary actuators based on asymmetrically clamping structures

Cheng

Wen

et al. 2015

Sensors and Actuators A: Physical

Self Cite

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“…The tangential and normal force are coupled to each other, which causes the stator to move obliquely (Cheng et al, 2017a; Moon et al, 2011). This design could adjust the friction force by changing the magnitude of the tangential force and the normal force, thereby achieving high-speed and large-load output performance (Cheng et al, 2007; Wen et al, 2013; Zhang et al, 2019). However, nonparallel-type stick-slip actuators are generally structurally asymmetric, making it difficult to achieve bidirectional motion.…”

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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A new inertial piezoelectric rotary actuator based on changing the normal pressure

Cited by 37 publications

References 20 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

Piezoelectric inertial rotary actuators based on asymmetrically clamping structures

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

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