Steel Forgings for a Tension Leg Platform Anchoring System—The Design and Management Contractor's Experience of Their Manufacture and Testing

2008 ◽  
pp. 540-540-10
Author(s):  
PJ Whitehouse
Keyword(s):  
Tension Leg Platform ◽  
Anchoring System

Tension-Leg Platform Design: Interaction of Naval Architectural and Structural Design Considerations

1979 ◽  
Vol 16 (04) ◽  
pp. 343-352
Author(s):  
Cuneyt Capanoglu
Keyword(s):  
Structural Design ◽  
Tension Leg Platform ◽  
Design Considerations ◽  
Exploration And Production ◽  
Anchoring System ◽  
Successful Design ◽  
Exciting Forces ◽  
Platform System ◽  
Selection Of

As oil exploration and production move into water depths over 1000 ft (305 m), several companies are investigating compliant structures as possible solutions to the economic and engineering problems involved. This paper focuses on the tension-leg type of platform, a positively buoyant structure kept on location by a pretensioned anchoring system. The basic approach to design of a tension-leg platform system, the various components of the system and the interaction between naval architectural and structural design considerations are presented. The author points out that planning for a successful design must include:preparation of good design criteria,determination of variables,evaluation of variables for sensitivity and interaction,accurate and timely engineering decisions in selection of a set of parameters, andparallel studies covering fabrication, transportation and installation requirements. Appendices give the mathematical bases for computing motions of the tenslon-leg platform and graphic illustrations of platform characteristics and the effects of typical exciting forces.

Response-based analysis for Tension Leg Platform

2017 ◽  
Vol 16 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Yongjun Chen ◽  
Dagang Zhang
Keyword(s):  
Tension Leg Platform

Small scale experimental study of the dynamic response of a tension leg platform wind turbine

2014 ◽  
Vol 6 (5) ◽  
pp. 053108 ◽  
Author(s):  
Anders Mandrup Hansen ◽  
Robert Laugesen ◽  
Henrik Bredmose ◽  
Robert Mikkelsen ◽  
Nikolaos Psichogios
Keyword(s):  
Experimental Study ◽  
Dynamic Response ◽  
Wind Turbine ◽  
Small Scale ◽  
Tension Leg Platform

A novel anchoring system for colonic stents: a pilot in vivo study in a porcine model

2013 ◽  
Vol 18 (6) ◽  
pp. 551-556
Author(s):  
A. Nevler ◽  
U. Willantz ◽  
O. Doron ◽  
J. Sandbank ◽  
Y. Ziv
Keyword(s):  
Porcine Model ◽  
In Vivo Study ◽  
Anchoring System ◽  
Colonic Stents

scholarly journals Simulation of the Load Evolution of an Anchoring System under a Blasting Impulse Load Using FLAC3D

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Xigui Zheng ◽  
Jinbo Hua ◽  
Nong Zhang ◽  
Xiaowei Feng ◽  
Lei Zhang
Keyword(s):  
Shear Stress ◽  
Dynamic Response ◽  
Axial Force ◽  
Mechanical Characteristics ◽  
Oscillation Amplitude ◽  
Anchoring System ◽  
Impulse Load ◽  
The Stability ◽  
Calculation Software ◽  
Dynamic Perturbation

A limitation in research on bolt anchoring is the unknown relationship between dynamic perturbation and mechanical characteristics. This paper divides dynamic impulse loads into engineering loads and blasting loads and then employs numerical calculation software FLAC3Dto analyze the stability of an anchoring system perturbed by an impulse load. The evolution of the dynamic response of the axial force/shear stress in the anchoring system is thus obtained. It is revealed that the corners and middle of the anchoring system are strongly affected by the dynamic load, and the dynamic response of shear stress is distinctly stronger than that of the axial force in the anchoring system. Additionally, the perturbation of the impulse load reduces stress in the anchored rock mass and induces repeated tension and loosening of the rods in the anchoring system, thus reducing the stability of the anchoring system. The oscillation amplitude of the axial force in the anchored segment is mitigated far more than that in the free segment, demonstrating that extended/full-length anchoring is extremely stable and surpasses simple anchors with free ends.

scholarly journals Laparoendoscopic single-site simple nephrectomy using a magnetic anchoring system in a porcine model

2016 ◽  
Vol 57 (3) ◽  
pp. 208 ◽  
Author(s):  
Young Hyo Choi ◽  
Hye Won Lee ◽  
Seo Yeon Lee ◽  
Deok Hyun Han ◽  
Seong Il Seo ◽  
...  
Keyword(s):  
Porcine Model ◽  
Single Site ◽  
Laparoendoscopic Single Site ◽  
Anchoring System
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