Engineering Research: Faculty and

kitteninterestΤεχνίτη Νοημοσύνη και Ρομποτική

15 Νοε 2013 (πριν από 3 χρόνια και 6 μήνες)

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Biomedical Engineering



Mechanical Engineering



Civil Engineering



Electrical Engineering



Computer Engineering



Materials Joining Engineering



Engineering Research: Faculty and
Ongoing Projects

Biomedical

Research

Faculty Directors

Roger Gonzalez, Ph.D., P.E.

(University of Texas, Austin, 1994 )





JoshWebb
, Ph.D.

(Stanford University, 2010)

ACL Deficient Knee Research


NSF Funded Project


Measure muscle forces, ground reaction forces, and joint
angles


Test with cadaver knees and fixtures


Verify computational model


Develop scientific basis for surgery or therapy

LEGS Prosthetics


Design, create , test


Lower extremity artificial limbs


Use in developing world


Inexpensive


Maintenance

free


Improve gait


LEGS Prosthetics


Currently in use in Kenya, Senegal, Bangladesh, Sierra Leone


Graduate Work in

Mechanical Engineering







Greg Reynolds,
Ph.D
, P.E
.

(Virginia Tech, 1982)

Jesse French, Ph. D.

(University of Tulsa, 2010)

Mechanical Engineering Research



Materials


Fluids


Biomimetics


Energy Generation


Energy Storage


Technology Transfer to Developing People Groups

Sustainable
Materials

Biomimicry

Alternative
Energy
Generation and
Capture

AEM is here.

Alternative

Energy

Materials

Wind


Solar


Hydro


Nuclear


Geothermal


Radiation


Magnetic


Vibration


Waste Energy

Energy
Harvesting


Natural Fibers


Natural Polymers

Low Energy Polymers


Hybrid Composites


Quartz


Ceramics


Form


Function


Materials


Critical Ratios


Movement


Manufacturing


Flow

Resonance

Research in ME
-

Fall 2011


Continuing Research Assistantship


Non
-
Rotational Fluid Energy Capture




(Materials, Energy, Fluids)


New Sponsored Research Assistantship #1


Sustainability in Non
-
Metallic Repairs




(Materials, Composites, Polymers)


New Sponsored Research Assistantship #2


Alternative Energy Materials




(Materials, Energy, Fluids)

Structural Composites Research

Faculty Director

Stephen R. Ayers, PhD

(University of S. Queensland, 2001)

Composite Materials for High
Performance Durable Bridge Decks


Project Aim:


To develop a bridge deck replacement system which
effectively utilizes the enhanced durability and performance
of FRP composites while improving installed costs, standard
supply options and accessibility for regular structural
engineers

Where Are We At?


1996


First FRP bridge constructed


No Name Creek, KS


2008


118 bridges constructed to date


Most bridges in northeastern US


82% from 4 suppliers


No code based design


Pre
-
approved designs


no ability of engineer to modify
properties


On
-
going problems with concentrated loads


Cost discrepancy down from 10:1 to 3:1



Why Aren’t We Doing Better?


Cost


Non
-
standard design practices


Specialized Manufacture


The lack of a competitive, open bidding process for projects


Targeting a Better Solution


4 Guiding Principles for New Development



Above anything else, a new approach to composite bridge structures is required
which better addresses the up
-
front cost disparity between composite designs
and traditional solutions.


A new approach to composite bridge structures is required which places the
design role back in the hands of the DOT, county engineer and contracted
design engineers.


A new approach to composite bridge structures is required which better
harmonizes with the existing practices and equipment of established
construction teams.



A new approach to composite bridge structures is required where design
engineers be able to produce specifications which can be competitively bid on for
construction.



FRP Reinforced Polymer Concrete


Polymer Concrete


Mix based on specific gravities


Self separating during cure to develop tensile and compression
zones


Uses fly
-
ash waste products (environmental benefits)


Improved bond between reinforcement and matrix


Improved structural properties compared to regular concrete


Prepared similar to regular concrete



3
-
D FRP Reinforcement System


Based on standard pultruded profiles


Lower cost


Improved availability


Square hollow shapes


Reduced structure weight


Improved manufacturability


Improved bonding


no ribs or physical anchorages required





Opportunities for MS Students?


Materials development and characterization


Component mechanics studies (short and long
-
term)


Manufacturing techniques


Technology scale
-
up into larger components and full
-
size
bridge

Electrical Engineering Research

Faculty Directors

Joonwan

Kim, Ph. D., P.E.

(University of Alabama, Huntsville, 2003




Seung

Kim, Ph. D.

(University of Alabama, Huntsville, 2004)


-

Adaptive Noise Canceller (ANC) design using the variable step size algorithm

-
Design and build military communication systems for Rockwell Collins Ins.

-
Design and build an augmented positioning system capable of logging

the position of a mobile vehicle.

-
Design a receiver for Digital Radio Mondiale (DRM) over shortwave bands with
diversity capability



Research in Computer Engineering
and Control Systems



Marian
Iordache
, Ph. D.


(University of Notre Dame, 2004)

Software Tools for Concurrent
Programming


Software tools for converting sequential programs to
concurrent programs are available.


However, programs can be considerably more efficient when
written from the beginning as concurrent programs.


Concurrent programming is notoriously difficult.



Solution: Generate automatically the concurrency code.


Software Tools for Concurrent
Programming


An area of research at LeTourneau University is the
development of software tools that help automate concurrent
programming.


This work involves:


Specification languages for concurrency control.


Formal representations of concurrency specifications (Petri nets).


Formal synthesis methods (supervisory control).


Much programming.


Opportunities for MS Students


Rules and heuristics for a computationally efficient application
of supervisory control methods.


Supervisory control algorithms for software applications.


Specification languages and translators.


Materials Joining Engineering
Research

Faculty Director

Yoni Adonyi, PhD, PE

(The Ohio State University, 1989)




Thermoelectric materials for solid
-
state power generation,
engineered semiconductor welding


Need MJE, ME and EE candidates (2 Graduate Researcher
positions) for FEA modeling of thermal
-

and stress analysis,
diffusion and surface tension fundamentals, experiments,
testing.


Career opportunities after graduation: Advanced
Manufacturing in electronics industry, PhD acceptance at EE,
Mat Science, Welding Engineering programs


US citizens or permanent residents only


Background


Seebeck, Peltier, and
Thomson effects


Figure of Merit






Power






Anisotropy


Activity 1


Modeling and Validation

Innovative (solid
-
state) welding of High
Performance Steels for Bridges


Friction Stir, High Frequency, Thermal Stir and hybrid solid
-
state processes


Need MJE, ME and EE candidates (2 positions) for FEA
modeling of hybrid process development, tool wear studies.


Funded by Federal Highway Administration (Research Lab), in
conjunction with NASA and Navy Surface Warfare Center


Further career opportunities: Advanced Manufacturing, PhD
acceptance in Mat Science
-

, Manufacturing
-

and Welding
-

Engineering programs



Project Structure

FHWA R&D
Ctr


McLean, VA

Navy Surface
Warfare
Ctr

Carderock
, MD

Thermatool


New
Haven, CT

NASA Marshall

Hunstville
, Al

AISI (oversight)

Washington, DC

PSI
(
funding)
Washington, DC

LeTourneau

Univ

Longview, TX

Virginia Tech

Blackburg
, VA

Activity 1


Tool Wear Modeling

What is new?


Innovative process development (Hybrid HF/FSW welding)


Positioned to avoid rediscovering the wheel (East Texas

)


Concave shoulder FSW tool


Base metal gap closure control for proximity effect


High strength steel expertise up to 150 ksi UTS


Post weld processing (PWHT)