A friction regulation hybrid driving method for backward motion restraint of the smooth impact drive mechanism

作者：Wang, Liang; Chen, Dong; Cheng, Tinghai^*; He, Pu; Lu, Xiaohui; Zhao, Hongwei

来源：Smart Materials and Structures, 2016, 25(8): 085033.

DOI：10.1088/0964-1726/25/8/085033

• smooth impact drive mechanism
• friction regulation hybrid driving method
• backward motion restraint

The smooth impact drive mechanism (SIDM) is a type of piezoelectric actuator that has been developed for several decades. As a kind of driving method for the SIDM, the traditional sawtooth (TS) wave is always employed. The kinetic friction force during the rapid contraction stage usually results in the generation of a backward motion. A friction regulation hybrid (FRH) driving method realized by a composite waveform for the backward motion restraint of the SIDM is proposed in this paper. The composite waveform is composed of a sawtooth driving (SD) wave and a sinusoidal friction regulation (SFR) wave which is applied to the rapid deformation stage of the SD wave. A prototype of the SIDM was fabricated and its output performance under the excitation of the FRH driving method and the TS wave driving method was tested. The results indicate that the backward motion can be restrained obviously using the FRH driving method. Compared with the driving effect of the TS wave, the backward rates of the prototype in forward and reverse motions are decreased by 83% and 85%, respectively.

• 出版日期2016-8
• 单位长春工业大学; 吉林大学