Computer analysis of a crane subjected to moving point load

This project investigates computer analysis of a crane subjected to moving point load and the difference between static and dynamic response of a crane. A modeling technique connects engineering software GT STRUDL to moving point load problem in dynamic analysis of a structure. Moving load problem i...

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Main Author: Piseth, Van.
Other Authors: Fung Tat Ching
Format: Final Year Project
Language:English
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/10356/15662
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-156622023-03-03T17:03:44Z Computer analysis of a crane subjected to moving point load Piseth, Van. Fung Tat Ching School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Structures and design This project investigates computer analysis of a crane subjected to moving point load and the difference between static and dynamic response of a crane. A modeling technique connects engineering software GT STRUDL to moving point load problem in dynamic analysis of a structure. Moving load problem is greatly influenced by critical speed concept. It exhibits high vibration level if load is moving at or near its critical speed. Critical speed of beam refers to the speed that induces maximum deflection. To implement the technique, a beam is divided into several equal segments by a number of nodes. The technique yields 1% error when a 6m beam is divided into 10 equal segments. The accuracy depends on time step and number of segments. It is found that the maximum dynamic vertical deflection is 1.158 times the static value when load move at critical speed in frame structure compared to ratio of 1.732 in beam theory. The beams that support moving loads in frame are called top beams. These top beams are allowed to move in vertical, horizontal and lateral directions. These boundary conditions significantly reduce the value of dynamic vertical deflection. The maximum deflection ratios are 1, 1.158 and 1.768 times compared to maximum static deflection when load move at normal operating speed 0.5m/s, critical speed 13.89m/s and four times value of critical speed 55.57m/s respectively. Bachelor of Engineering (Civil) 2009-05-14T01:27:48Z 2009-05-14T01:27:48Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/15662 en Nanyang Technological University 91 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Civil engineering::Structures and design
spellingShingle DRNTU::Engineering::Civil engineering::Structures and design
Piseth, Van.
Computer analysis of a crane subjected to moving point load
description This project investigates computer analysis of a crane subjected to moving point load and the difference between static and dynamic response of a crane. A modeling technique connects engineering software GT STRUDL to moving point load problem in dynamic analysis of a structure. Moving load problem is greatly influenced by critical speed concept. It exhibits high vibration level if load is moving at or near its critical speed. Critical speed of beam refers to the speed that induces maximum deflection. To implement the technique, a beam is divided into several equal segments by a number of nodes. The technique yields 1% error when a 6m beam is divided into 10 equal segments. The accuracy depends on time step and number of segments. It is found that the maximum dynamic vertical deflection is 1.158 times the static value when load move at critical speed in frame structure compared to ratio of 1.732 in beam theory. The beams that support moving loads in frame are called top beams. These top beams are allowed to move in vertical, horizontal and lateral directions. These boundary conditions significantly reduce the value of dynamic vertical deflection. The maximum deflection ratios are 1, 1.158 and 1.768 times compared to maximum static deflection when load move at normal operating speed 0.5m/s, critical speed 13.89m/s and four times value of critical speed 55.57m/s respectively.
author2 Fung Tat Ching
author_facet Fung Tat Ching
Piseth, Van.
format Final Year Project
author Piseth, Van.
author_sort Piseth, Van.
title Computer analysis of a crane subjected to moving point load
title_short Computer analysis of a crane subjected to moving point load
title_full Computer analysis of a crane subjected to moving point load
title_fullStr Computer analysis of a crane subjected to moving point load
title_full_unstemmed Computer analysis of a crane subjected to moving point load
title_sort computer analysis of a crane subjected to moving point load
publishDate 2009
url http://hdl.handle.net/10356/15662
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