Mr. Sakthi Swarrup Jayabalan Profile

Sakthi Swarrup Jayabalan

at Indian Institute of Science

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Proceedings Article | 1 April 2015 Paper

Effect of mass loading on ionic polymer metal composite actuators and sensors

Sakthi Swarrup J., Ranjan Ganguli

Proceedings Volume 9430, 94302D (2015) https://doi.org/10.1117/12.2083865

KEYWORDS: Actuators, Metals, Polymers, Sensors, Composites, Magnesium, Polymeric actuators, Electrodes, Temperature metrology, Dielectrics

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Ionic polymer metal composites (IPMC) actuator for flapping insect scale wing is advantageous due to its low mass, high deflection and simple actuation mechanism. Some of the factors that affect the actuation of IPMC are the amount of hydration in the polymer membrane and the environmental conditions such as temperature, humidity etc. In structural design, the attachment of wing on the IPMC actuators is an important concern as the attached wing increases the mass of actuators thereby affecting the parameters like displacement, stiffness and resonant frequencies. Such IPMC actuators have to produce sufficient actuation force and frequency to lift and flap the attached wing. Therefore, it is relevant to study the influence of attachment of wing on the actuator parameters (displacement, resonant frequency, block force and stiffness) and performance of the actuators. This paper is divided into two parts; the first part deals with the modeling of the IPMC actuators for its effect on the level of water uptake and temperature using energy based method. The modeling method adapted is validated with the experimental procedure used to actuate the IPMC. The second part deals with the experimental analysis of IPMC actuation at dry, wet and in water conditions. The effect of end mass loading on the performance of 20 Hz, high frequency actuator (HFA) and 8.7 Hz, low frequency IPMC actuators (LFA) and sensors is studied. The IPMC actuators are attached with IPMC flapping wing at its free end and performance analysis on the attached wing is also carried out.

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