CONTROL AND PROGNOSTIC OF ELECTRO-HYDRAULIC MACHINES
Student Researchers: Federico Campanini and Riccardo Bianchi, Purdue University
Faculty Advisor: Andrea Vacca, Purdue University
This project focuses on investigating advanced electro-hydraulic techniques to optimize adaptive control, reduce application oscillations, and conduct hydraulic system diagnostics and prognostics under different operating conditions. It has investigated both hydraulic crane and wheel loader applications for controlling oscillations that occur in those types of machinery.
CONTROLLED STIRLING POWER UNIT
Student Researcher: Seth Thomas, Vanderbilt University
Faculty Advisor: Eric Barth, Vanderbilt University
The project addresses limitations in the current options for power supplied to mobile robots and exoskeletons through the development of a quieter, more energy-dense, compact, and portable fluid power supply using a stirling device. Such advancements would enable the use of fluid power technology in a variety of military, medical, manufacturing, and construction applications. The stirling device can use a number of highly energy-dense, flexible fuel or available heat sources to create hydraulic or pneumatic fluid power in an easily scalable design.
EFFICIENT, INTEGRATED, FREEFORM FLEXIBLE HYDRAULIC ACTUATORS
Student Researcher: Jonathon Slightam, Marquette University
Faculty Advisor: Mark Nagurka, Marquette University
This project sets to advance current hydraulic actuator technology by focusing on the use of flexible fluidic actuators and the additive manufacturing methods needed to produce them. It differentiates itself from existing actuation technologies most prominently through the dramatic reduction in component and system weight that comes with producing this new actuation technology via advanced manufacturing methods, opening up many new applications to fluid power solutions.
FOUR-QUADRANT MULTI-FLUID PUMP/MOTOR
Student Researcher: James Marschand, Purdue University
Faculty Advisor: John Lumkes, Purdue University
This project focuses on the design and simulation of digital pumps and motors for multi-fluid operation as well as evaluation of their feasibility. It has built upon existing technology and research by working toward a novel mechanical control for digital pumps and motors in pursuit of making this technology approach more feasible.
FREE PISTON ENGINE BASED OFF-ROAD VEHICLES
Student Researchers: Keyan Liu and Chen Zhang, University of Minnesota
Faculty Advisor: Zongxuan Sun, University of Minnesota
This project focuses on the design, control, and testing of free piston engine pumps for off-road vehicles, a potentially transformational architecture. It has differentiated itself from existing technology approaches by controlling the hydraulic engine, in lieu of variable pumps, to generate the required pressure and flow for the vehicle’s hydraulic actuation systems, including both linear and rotary motions. Solutions to improve vehicle fuel efficiency and energy storage while reducing emissions and environmental impact have also been investigated.
HYBRID MEMS PROPORTIONAL FLUID CONTROL VALVE
Student Researcher: Nathan Hagstrom, University of Minnesota
Faculty Advisor: Thomas Chase, University of Minnesota
MEMS scale piezoelectric materials to create ultra-efficient miniature proportional pneumatic valves have been studied by CCEFP researchers for a number of years now, but the manufacturing challenges to overcome have proven to be quite daunting. The purpose of this project has been to accelerate the commercialization potential of this innovative approach by leveraging both MEMS-based and conventional elements in a novel “hybrid” configuration. By doing so, the resulting valve stands to not only decrease the power required to drive comparable pneumatic valves by three orders of magnitude, but also create the fastest responding pneumatic valves known
INVESTIGATION OF NOISE TRANSMISSION THROUGH PUMP CASING
Student Researcher: Paul Kalbfleisch, Purdue University
Faculty Advisor: Monika Ivantysynova, Purdue University
This project focuses on noise modeling techniques for swash plate type axial piston machines. The optimized models arebeing validated by experimental results. It will contribute to the existing body of knowledge for how noise is both generated and transmitted through fluid power components.
PORTABLE PNEUMATICALLY POWERED ORTHOSES
Student Researchers: Girish Krishnan, Gaurav Singh, and Chenzhang Xiao, University of Illinois at Urbana-Champaign
Faculty Advisor: Elizabeth Hsiao-Wecksler, University of Illinois at Urbana-Champaign
The project focuses on the design and analysis of a soft pneumatic sleeve for arm orthosis. This is expected to contribute to orthotic control mechanisms and clinical treatment strategies, both of which are areas that have significant potential for advancements. The final design will be lighter and more compact than what is currently available and will have enhanced power and performance. In addition to making strides in orthotics, this research will also drive the use of compact fluid power technologies in other human scale devices
SIMULATION, RHEOLOGY, AND EFFICIENCY OF POLYMER ENHANCED FLUIDS
Student Researchers: Duval Johnson, Uma Shantini Ramasamy, University of California – Merced; Mercy Cheekolu, Pawan Panwar, Milwaukee School of Engineering
Faculty Advisors: Ashlie Martini, University of California – Merced; Paul Michael, Milwaukee School of Engineering
This project focuses on measuring how a fluid’s polymer structure affects hydraulic power transmission in pursuit of formulating more efficient hydraulic fluids. It builds upon previous research by incorporating tribometer testing, high pressure rheology studies, and molecular dynamics simulations into the research methods.
VARIABLE AC HYDRAULIC PUMP/MOTOR
Student Researchers: Mengtang Li, Vanderbilt University; Ryan Foss, University of Minnesota
Faculty Advisors: Eric Barth, Vanderbilt University; James Van de Ven, University of Minnesota
Hydraulic systems today can best be classified as DC, or direct flow, hydraulics. This project investigates the modeling, design, and development of AC hydraulic systems. This project builds upon the existing CCEFP variable linkage piston pump that is both compact and efficient even under low displacement operating conditions. It also greatly expands the existing body of knowledge for applying existing variable displacement pumps to alternating flow AC hydraulic circuits, including multi-actuator systems.