Estimating Design Loads for Floating Structures Using Environmental Contours
نویسندگان
چکیده
Abstract Nonlinear time-domain simulations are often used to predict the structural response at design stage ensure acceptable operation and/or survival of floating structures under extreme conditions. An environmental contour (EC) is commonly employed identify critical sea states that serve as input for numerical assess safety and performance marine structures. In many studies, marginal conditional distributions defined construct bivariate joint probability variables, such significant wave height zero-crossing period. Then, ECs can be constructed using inverse first-order reliability method (IFORM). This study adopts alternative models describe generalized dependence structure between variables copulas discusses Nataf transformation a special case. measured data from moored buoys. Derived loads applied on semisubmersible platform possible differences. addition, linear interpolation scheme utilized establish parametric model short-term tension distribution parameters data, long-term estimated Monte Carlo simulation. A 3D IFORM-based approach, in which ignored EC approach third variable, proposed help accurate with increased accuracy. Results offer clear illustration responses based different models.
منابع مشابه
investigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
Design Structures for Formally Veri ed Floating Point Units
A design structure is presented to assist in the design of IEEE compliant oating point hardware. The basis of the process is an abstraction of the bitwise operations found in hardware to reals and integers. This simpliies the deenition of functionality prior to going to hardware. The nal design structure will include a set of general algorithms deened for oating point operations (add, sub, mult...
متن کاملestimating claims reserves using ibnr reserves
شرکت های بیمه در قبال بیمه گذاران متعهد می شوند که به ازای دریافت حق بیمه، خسارت وارده به بیمه گذاران را جبران نمایند. بنابراین بیمه گر همیشه مبالغی را بر عهده دارد که متعلق به بیمه گذاران است و مربوط به تعهدات آینده می باشد. این مبالغ را ذخایر فنی یا technical reserves گویند. بیمه گر موظف است در پایان سال مالی، هنگام بستن حساب ها، ذخایر فنی را محاسبه و نگهداری کند. پس از وقوع خسارت، بیمه گذار ...
Optimal topology design of structures under dynamic loads
Abs t r ac t When elastic structures are subjected to dynamic loads, a propagation problem is considered to predict structural transient response. To achieve better dynamic performance, it is important to establish an optimum structurM design method. Previous work focused on minimizing the structural weight subject to dynamic constraints on displacement, stress, frequency, and member size. Even...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Marine Science and Application
سال: 2022
ISSN: ['1671-9433', '1993-5048']
DOI: https://doi.org/10.1007/s11804-022-00282-x