ORCID Profile
0000-0002-4662-5650
Current Organisation
National Science Foundation
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: American Society of Civil Engineers
Date: 17-03-2015
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2019
Publisher: IEEE
Date: 06-2017
Publisher: Thomas Telford Ltd.
Date: 2019
Abstract: With the advent of high-accuracy sensors and increased interest in geotechnical centrifuge testing simulating loading within serviceability limits, a stronger understanding of the magnitude and orientation of centrifuge gravity relative to the scale model is necessary. This paper presents a methodology for determining two-dimensional centrifuge gravity within a model independently of centrifuge type or geometry, which can be used to recompose the gravity field from the direct measurement of a single gravity vector, given angular velocity. Finally, the methodology is compared to the mechanics of drum and beam centrifuges to provide physical meaning to coordinate rotation variables.
Publisher: Thomas Telford Ltd.
Date: 09-2018
Abstract: Microelectromechanical systems (MEMS) accelerometers are becoming more prevalent in geotechnical engineering and geotechnical centrifuge modelling. In centrifuge experiments these sensors have shown great promise, but still exhibit limitations. This paper proposes a new methodology for the use of single-axis, low-g, high-accuracy MEMS accelerometers to measure the orientation of an object on the vertical rotational plane of centrifugal acceleration and Earth's gravity in a geotechnical centrifuge. The method specifically compensates for the measured cross-axis acceleration by an MEMS accelerometer when in a high-g environment. This is done by determining the apparent internal misalignment of the MEMS sensing unit, relative to its packaging, from a high-g cross-axis calibration. The misalignment can then be used to correct the measured orientation of the sensor relative to a centrifuge gravity vector. When compared to simplified approaches, measurements of absolute orientation are improved by 0·89° and the standard deviation of measurements between multiple sensors is reduced by 0·71°. Overall, this new methodology significantly improves the accuracy of orientation measurements by MEMS accelerometers in the geotechnical centrifuge, opening the door to use these inexpensive sensors in more experiments.
Publisher: American Society of Civil Engineers
Date: 08-08-2016
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2021
Publisher: American Society of Civil Engineers
Date: 08-08-2016
Location: United States of America
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Giovanna Biscontin.