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The NC Agromedicine Institute is a University of North Carolina Institute.

Member Universities:
East Carolina University
North Carolina State University
NC Agricultural & Technical State University
 
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Development of an Off-Road Vehicle Data Acquisition System for Assessing the Influences of Vehicle Shock and Vibration on Operator Health and Safety
Project Name: Development of an Off-Road Vehicle Data Acquisition System for Assessing the Influences of Vehicle Shock and Vibration on Operator Health and Safety

Principal Investigator: Thomas F. Burks, PhD, PE, University of Florida

Project Type: Core Feasibility Education/Outreach

Project Description: A Data Acquisition system will be developed to measure geo~referenced shock and vibration data from an agricultural tractor. Ti-axial accelerometers will be mounted on the front and/or rear axle and on the driver's seat. An ultrasound ground speed sensor will be used to monitor velocity. These sensors will be connected to a National Instruments Modular Signal Conditioning Carrier (MSCC). The carrier is equipped with nine ICP signal conditioners, one per accelerometer channel. A Differential Global Positioning System (DGPS) receiver will be interfaced to the serial port of the MSCC. LabView will provide a graphical users interface (GUI) to the data acquisition system, manage data acquisition and storage of ground speed, accelerometer signals and DGPS data stream.

An obstacle course will be constructed to simulate rough field terrain. The Tractor will be driven through the course at prescribed velocities while data is collected from the accelerometers, ground speed sensor and the DGPS. A position map will be created to mark the obstacles and provide a ground truth of known obstacles. Correlations can then be made between the known obstacles of varying magnitude and the measured shock and vibration events as a function of ground speed.

The development of this data acquisition system will serve two purposes. First, the system will be used as a teaching demonstration tool for undergraduate and graduate level. Secondly, it will be used for monitoring dynamic shock and vibration events and their effects on actual field equipment operation. Specifically, this system will be used in on-going research to evaluate the relationship between travel speed and obstacle magnitude, and their affect on operator safety due to acceleration events.

Project Accomplishments:

Annual Report 2004

Balasubramanian K, Burks TF, Lehtola CJ, Lee WS. 2006. Shock and vibration data acquisition system for off-road vehicle operator health and safety assessment.J Agric Saf Health. 12(4):293-313.

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