کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
739672 1461906 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A piezoelectric-driven rotary actuator by means of inchworm motion
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
A piezoelectric-driven rotary actuator by means of inchworm motion
چکیده انگلیسی

This paper presents a piezoelectric-driven stepping rotary actuator based on the inchworm motion. With the help of nine piezoelectric stacks and the flexure hinges, the designed actuator can realize large rotary ranges and high rotary speed with high accuracy. Three kinds of working units that compose the actuator are described and calculated: the clamping unit to hold the rotor, the adjusting unit to preload the piezoelectric stacks and the driving unit to produce the driving torque. To test the working performance, a prototype actuator was fabricated, and the experimental results indicate that the minimum stepping angle is 4.95 μrad when the driving voltage is 20 V and the frequency is 1 Hz, the maximum output torque is 93.1 N mm under the driving voltage of 100 V and the maximum velocity can be 6508.5 μrad/s when the frequency reaches 30 Hz. The experimental results verify that the proposed actuator can realize different stepping angles and rotation speeds with high accuracy under different driving voltages and frequencies.


► The inchworm motion and flexure hinges were used to a PZT-driven rotary actuator.
► Experiments and analysis show that the actuator could rotate with high precision.
► The driving voltage and frequency could influence the performance of the actuator.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 194, 1 May 2013, Pages 269–276
نویسندگان
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