Global ETD Search

1	Dynamic Analysis of Offshore Template Platform by the Vector Form Intrinsic Finite Element Method Tseng, Guo-wei 13 February 2007 (has links) A vector form intrinsic finite element method ( plane frame element ) is developed and applied to study the dynamic responses of offshore template platform under wave force. The horziontal, vertical and rotational motions at each node in the finite element model also were analyzed by the developed solution procedure of offshore structures. Besides, this paper also discussed the application of viscoelastic dampers on the offshore structures. A design for the dampers incorporated in the template structure were presented, and dynamic analyses were carried out to observe the effect of the vibration mitigation on the structures . plane frame element vibration mitigation viscoelastic dampers dynamic analyses vector form intrinsic finite element offshore structures
2	Wind-induced Vibration Control of Tall Timber Buildings : Improving the dynamic response of a 22-storey timber building Al Haddad, Aiham Emil January 2016 (has links) Plans for construction of the tallest residential timber building has driven the Technical Research Institute of Sweden (SP), Linnaeus University, Växjö and more than ten interested companies to determine an appropriate design for the structure. This thesis presents a part of ongoing research regarding wind-induced vibration control to meet serviceability limit state (SLS) requirements. A parametric study was conducted on a 22-storey timber building with a CLT shear wall system utilizing mass, stiffness and damping as the main parameters in the dynamic domain. Results were assessed according to the Swedish Annex EKS 10 and Eurocode against ISO 10137 and ISO 6897 requirements. Increasing mass, stiffness and/or damping has a favorable impact. Combination scenarios present potential solutions for suppressing wind-induced vibrations as a result of higher efficiency in low-increased levels of mass and damping. timber building wood building structural dynamics damping viscoelastic dampers 22-storey timber wind-induced vibrations acceleration control increased mass increased stiffness ISO 10137 ISO 6897 EKS 10

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Dynamic Analysis of Offshore Template Platform by the Vector Form Intrinsic Finite Element Method

Wind-induced Vibration Control of Tall Timber Buildings : Improving the dynamic response of a 22-storey timber building