William Lucius - Academia.edu (original) (raw)

Papers by William Lucius

Partially filled heavy-duty tanker trucks maneuvering constant radius turns or lane change maneuv... more Partially filled heavy-duty tanker trucks maneuvering constant radius turns or lane change maneuvers have lower rollover threshold than other vehicles because of the high center of gravity and dynamic sloshing of the liquid payload. Payloads are often toxic and hence, rollover accidents can be catastrophic. Therefore, attempts to increase the threshold velocity and predicting its value under various on-road maneuvers are of paramount importance. This research was aimed at studying the effects of baffles on reducing the lateral sloshing and thereby, improving the stability of heavy-duty trucks. Various configurations (horizontal, vertical, horizontal and vertical, and diagonal) of baffles were considered for this purpose. The objective of this project was to determine the best configuration of baffles for various shapes of tank-containers, percent fill levels, and different kinds of maneuvers. Damping effects of the kinematic viscosity of the fluid inside the tank were also studied in this research. This was done to determine the trammel pendulum parameters for pendulum-fluid dynamic effect matching. Trammel pendulums can also be used to study and simulate the lateral fluid sloshing effects in partially filled tankers. Kinematic viscosity of the fluid was found to have no significant damping effect on the lateral fluid sloshing. Conclusions were drawn regarding the effects of various baffles. Damping provided at the free surface of the fluid was found to have the best effect. Horizontal and diagonal baffles were found to be the best for constant radius turns with a maximum reduction of 60% in the moments. In a TOP lane change maneuver, Rohit Tanugula Effects of Baffles on Damping Lateral Fluid Sloshing Oscillations in Tanker Trucks Abstract iii diagonal baffles were found more effective for lower fill levels up to 50%. For fill levels higher than 50% vertical baffles were found to be the best configuration. iv ACKNOWLEDGEMENTS I would like to thank my advisor, Dr. Mridul Gautam, for his continuous support, advice, and guidance throughout the last two years. He was always there whenever I needed him. Working under his supervision has been a wonderful experience. I would also like to thank Dr. Victor Mucino for his support and guidance anytime I needed. His continued interest and invaluable suggestions have been a constant inspiration and source of encouragement. Thanks are also due to Dr. Kenneth Means for participating on my committee. I would also like to credit Sandeep Mehta, Eric Saunders, Mohamed Salem and Leo Marbun for their support and inspiration. Sandeep has taught me many things and has been of great help. Whenever I was stuck with a problem he was there to help me out with various options and countless hours of discussions. I would also like to thank my parents, brothers and friends for the love and motivation they have provided throughout my studies.

Rocky Mountain Region Miuion: A. the Nation's principaJ con.servation agency, the Department of t... more Rocky Mountain Region Miuion: A. the Nation's principaJ con.servation agency, the Department of the Interior has responsibility for most of our nationally-owned public lands and natural and cultural reaourca. Thia includes fostering wise use of our land and water resources, protecting our fLlh and wiJdlife, preserving the environmental and cultural values of our national parks and historical places, and providing for the el\ioyment of life through outdoor recreation. 'The Department 8.88e88eS our energy and mineral resources and works to assure that their development is in the be.t interests of all our people. The Department also promotes the goals of the Take Pride in America campaign by encouraging stewardship and citizen responsibility for the public lands and promoting citizen participation in their care. The Department also has a major responsibility for American Indian reservation communities and for people who live in Island Territories under U.E. Administration. NPS-D-lll.

American Anthropologist, 1994

Aerial photograph of Long House Valley, facing southwest 13 2-3. Map of Long House Valley in the ... more Aerial photograph of Long House Valley, facing southwest 13 2-3. Map of Long House Valley in the period a.d. 1000-1150 15 2-4. Map of Long House Valley in the period a.d. 1150-1250 17 2-5.

Page 1. I I I I I I I I I I I I I I I DOLORES ARCHAEOLOGICAL PROGRAM TECHNICAL REPORTS REPORT NUM... more Page 1. I I I I I I I I I I I I I I I DOLORES ARCHAEOLOGICAL PROGRAM TECHNICAL REPORTS REPORT NUMBER: DAP-017 1978 Additive Analysis Report by William A. Lucius Prepared for Cultural Resources Mitigation Program ...

American Anthropologist, 1994