Pneumatically actuated robotic systems are attractive alternatives to traditional electromechanical systems due to the power density advantage of pneumatic actuators. This assumes that a power source is available to provide the pneumatic supply at a sufficient energy density to compete with batteries. To this end, a high inertance free liquid piston compressor (HIFLPC) was developed as a portable, efficient, compact power supply for pneumatically actuated systems. This paper presents the model-based design and operation of the HIFLPC, as well as the fabrication and evaluation of an experimental prototype of the device. Efficiency, power output, and other operational characteristics of the prototype are experimentally assessed. A validation of the dynamic model developed for the HIFLPC is conducted, and model-based studies are performed to investigate the influence on system performance by varying liquid piston dynamics.
The High Inertance Free Piston Engine Compressor—Part II: Design and Experimental Evaluation
Contributed by the Dynamic Systems Division of ASME for publication in the Journal of Dynamic Systems, Measurement, and Control. Manuscript received March 18, 2011; final manuscript received January 17, 2013; published online April 25, 2013. Assoc. Editor: Nabil Chalhoub.
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Willhite, J. A., Yong, C., and Barth, E. J. (April 25, 2013). "The High Inertance Free Piston Engine Compressor—Part II: Design and Experimental Evaluation." ASME. J. Dyn. Sys., Meas., Control. July 2013; 135(4): 041002. https://doi.org/10.1115/1.4023760
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