An inertial bipedal piezoelectric actuator with integration of triple actuation modes

Deng, Jie; Wang, Weiyi; Zhang, Shijing; Lu, Feifei; Liu, Yingxiang

doi:10.1088/1361-665x/ac993b

Cited by 7 publications

(3 citation statements)

References 47 publications

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“…They used the actuator in an AVC system for a lightweight structure. Deng et al [35] Introduced an inertial bipedal piezoelectric actuator with triple actuation modes that can be achieved by changing the excitation signal. The three actuation modes correspond to the advantages of simple excitation mode, high displacement linearity, and stable load characteristics.…”

Section: Introductionmentioning

confidence: 99%

Active vibration control of gearbox housing using inertial mass actuators

Okda,

Nampally,

Fontana

et al. 2024

Smart Mater. Struct.

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The efficiency of transmission systems is influenced by the generation of vibrational and acoustic emissions. Lightweight transmission systems are even subjected to higher levels of vibration. In this paper, an economical active vibration control system is developed to control the vibration levels of an automotive gearbox housing. The gearbox's mounting points are targeted to reduce the transmitted vibrations to the car cabin. The active control system aims to target high-frequency vibrations between 1000 Hz and 5000 Hz. A compact piezoelectric inertial mass actuator is designed and tested on a gearbox-constructed setup that simulates the vibrations and noise similar to a commercial automotive transmission system. The developed test-rig is excited by a piezo stack actuator at the input shaft. Filtered-x least mean square algorithm is implemented on a high-speed microcontroller, and the vibration levels are significantly reduced using the active system. An average reduction of approximately 8.5 dB is achieved between 1000 Hz and 1500 Hz, an average reduction of approximately 14 dB is obtained between 1500 and 2000 Hz, and an average reduction of 10.8 dB is attained between 2500 and 5000 Hz.

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Section: Introductionmentioning

confidence: 99%

Active vibration control of gearbox housing using inertial mass actuators

Okda,

Nampally,

Fontana

et al. 2024

Smart Mater. Struct.

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“…They are widely utilized in robotics [6], aerospace [7] and biomedical fields [8]. According to the actuating principle, piezoelectric actuators can be divided into ultrasonic type [9,10], inertia type [11,12], inchworm type [13,14] and direct type [15,16]. However, the slippage phenomenon between the actuator and stator leads to the insufficient smoothness of the output displacement [17,18].…”

Section: Introductionmentioning

confidence: 99%

A low speed piezoelectric actuator with high displacement smoothness and its multi-objective optimized method

Cheng,

Chen,

et al. 2023

Smart Mater. Struct.

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Piezoelectric actuators are widely utilized in the precision industry field, but the existing piezoelectric actuators are difficult to achieve high displacement smoothness at low speed, which limits the practical application of the piezoelectric actuators. This work proposes a piezoelectric actuator that can achieve high displacement smoothness through a multi-leg coordinated actuation principle. A multi-objective optimized method based on adaptive mutation genetic algorithm is utilized to design the driving leg by comprehensively considering five design variables. The design goal of the maximum displacement of the driving foot and the minimum size of the driving leg are achieved. A prototype is fabricated and the characteristics are tested. The experimental results demonstrate the effectiveness of the optimized method. High displacement smoothness at low speed is also achieved. The output displacements of the proposed actuator at different driving voltages and frequencies show no regression and intermittent motion. The linearity R 2 could reach 0.9978, and the low output speed of the actuator could reach 22.69 µrad s−1 at voltage of 100 Vp–p and frequency of 1 Hz.

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“…However, these motors require a complex control method and are more demanding in terms of part accuracy and assembly. In the case of inertia actuators [11], [12], [13], [14], [15], [16], the inertia of a slide guide is used to drive in step motion through continuous friction contact. Typically, a single piezo-stack is used to achieve positive and reverse motion.…”

Section: Introductionmentioning

confidence: 99%

A Novel Piezo Inertia Actuator Inspired by Motion Mode of Steam Train’s Transmission Mechanism

Sun

Zhang

2023

IEEE Access

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Previously reported inertia actuators mostly have the problem of greater deviations between positive and reverse speeds. To solve this problem, we have developed a novel piezo inertia actuator with a similar structure, inspired by the motion mode of the steam train's transmission mechanism. Based on the inertia principle, a saw-tooth waveform voltage is used to drive the actuator. The aim of this study is to report the model design, working principle and the output characteristics experiment of the designed actuator. The prototype is fabricated for testing of mechanical properties. Experiments indicate that the positive and reverse average speeds are 12.59 mm/s and 11.99 mm/s, respectively, with a deviation rate of 4.9%, which is much lower than those of previous actuators. Finally, the experiment proves the effectiveness of the novel piezo inertia actuator inspired by the motion mode of the steam train's transmission mechanism.

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An inertial bipedal piezoelectric actuator with integration of triple actuation modes

Cited by 7 publications

References 47 publications

Active vibration control of gearbox housing using inertial mass actuators

Active vibration control of gearbox housing using inertial mass actuators

A low speed piezoelectric actuator with high displacement smoothness and its multi-objective optimized method

A Novel Piezo Inertia Actuator Inspired by Motion Mode of Steam Train’s Transmission Mechanism

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