Synchronized an artificial muscle movements with music rhythm according to human perception

Abstract

This paper introduce a harmonic sinusoidal voltage that will actuate a 3M's VHB 4905/4910 Dielectric Elastomer Artificial Muscle (DEAM). This actuation voltage that is actually a sinusoidal pattern of music rhythm will synchronize the artificial muscle movements with music harmony. To have this manner, first a sinusoidal pattern of music rhythm will be extracted. Principles of this pattern are strengths, tempos and phases of original music rhythm at different intervals. Then due to irregular and infinite range of beat strength, a fuzzy controller will be proposed to map beat strength of music rhythm in the plausible range of artificial muscle displacements. This fuzzy controller is responsible to output a cogent strain rate in response to the current interval beati and its calculated tempoi and certainly according to human perception. Frequency of the harmonic voltage signal which is the tempo of rhythm has also been adjusted to respect ratio 1:2 of DE response frequency. Results in the forms of plots and an offline simulation have demonstrated the performance of proposed actuation voltage.