alexa Development Of A Cartesian Biomechanical Testing System With 6DOF Coordinated Real-time Load Control: Application To The Lumbar Spine (L1-S, L4-L5) | 19360
ISSN: 2168-9792

Journal of Aeronautics & Aerospace Engineering
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

2nd International Conference and Exhibition on Mechanical & Aerospace Engineering
September 08-10, 2014 Philadelphia, USA

Brian P Kelly and Charles R Bennett
Accepted Abstracts: J Aeronaut Aerospace Eng
DOI: 10.4172/2168-9792.S1.005
Abstract
In-vitro robotic biomechanical assessments of human joints offer more comprehensive evaluations however standard position control algorithms make real-time load control problematic. To better simulate in-vivo multi-directional load conditions we report on development of a Cartesian load controlled testing system (CLTS) with coordinated real-time load control. A custom 6 degree of freedom (DOF) manipulator with cascaded force over position control algorithms was assembled. Dial gauge tests assessed accuracy of linear axes. Standard test input and tuning procedures refined control performance. Two lumbar (L4-L5) and (L1-S) spine segments were tested in flexion-extension, lateral bending and axial rotation to 8Nm under full 6-DOF load control. L4-L5 specimens were tested with force components dynamically programmed to deliver a resultant 400N follower load that remained normal to the moving midline of the intervertebral disc. Mean tracking errors between commanded and experimental loads were computed. Spinal rotations were compared to published values for non-robotic protocols. Individual linear and rotational axis position control accuracies were less than 6.35 μm and 0.0167? respectively. Pilot tests demonstrated stable control performance, as well as load rates, rotational velocities, and ranges of motion comparable to those for standard non-robotic in-vitro tests. Tracking errors for force and moment controlled axes were less than 1.3?1.6 N and 0.18?0.19 Nm, respectively. The CLTS simplified application and demonstrated robust position and load control that was not limited to single axis or zero-commanded loads. The CLTS is a promising tool for biomechanical assessments with coordinated dynamic load application and coupled motion response in 6DOF.
Biography
Brian P Kelly received his Doctorate from the University of Tennessee Health Science Center (UTHSC) in 2005 and is currently an Assistant Professor of Biomedical Engineering at UTHSC. He has been the Principle and Co-Investigator of more than 20 industry sponsored research studies, the author/co-author of more than 11 published journal articles and 63 published conference abstracts, and presented more than 16 invited oral podium presentations at seminars and conferences. He is currently a reviewer for several reputed journals, and serves as theme leader/organizer for joint and spine biomechanics sessions at the ASME Annual Summer Bioengineering Conference.
image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2018-19
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2018 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version