Accuracy of a composite implicit time integration scheme for structural dynamics

2016 ◽  
Vol 109 (3) ◽  
pp. 368-406 ◽  
Author(s):  
Jie Zhang ◽  
Yinghua Liu ◽  
Donghuan Liu
Keyword(s):  
Structural Dynamics ◽  
Time Integration ◽  
Implicit Time ◽  
Integration Scheme ◽  
Implicit Time Integration ◽  
Time Integration Scheme

Dynamics of Disconnected Risers Under Rigid and Compliant Hang-Off

1990 ◽  
Vol 112 (2) ◽  
pp. 106-114
Author(s):  
N. M. Patrikalakis ◽  
D. Y. Yoon
Keyword(s):  
Efficient Solution ◽  
Time Integration ◽  
Implicit Time ◽  
Integration Scheme ◽  
Nonuniform Grid ◽  
Implicit Time Integration ◽  
Time Integration Scheme ◽  
Type Response ◽  
Nonlinear Motions ◽  
Excitation Conditions

An efficient solution scheme to simulate the nonlinear motions of hanging risers based on an adaptive nonuniform grid finite difference method and an implicit time integration scheme is presented. Dynamic buckling-type response of hanging risers under rigid hang-off due to heave acceleration of the support platform in extreme excitation conditions is studied, and the important parameters affecting the response are identified. Significant reduction of motions and resulting stresses is obtained by employing compliant hang-off.

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