CN-122021426-A - Semi-submersible wind power floating body main scale rapid design and performance evaluation system and method

CN122021426ACN 122021426 ACN122021426 ACN 122021426ACN-122021426-A

Abstract

The invention relates to a system and a method for rapidly designing and evaluating main dimensions of a semi-submersible wind power floating body, and belongs to the technical field of ocean engineering floating body design. The system comprises a parameterized modeling module, a stability check module, a hydrodynamic analysis module and a sensitivity analysis module. The method comprises the steps of importing main scales and layout types of parameters in a parameter input interface, calling a stability check module, calculating a high-initial stability GM and outputting a static moment arm GZ curve according to specifications, rapidly obtaining heave, roll and pitch inherent periods according to a drainage volume, an additional mass and a moment of inertia by a hydrodynamic analysis module, generating a RAO curve to evaluate wave adaptability, calculating a sensitivity coefficient of key parameters to the GM by a sensitivity analysis module, positioning the most sensitive variable and giving an optimization direction. The method obviously shortens the design period, reduces trial-and-error cost, and realizes efficient iteration and performance optimization of the floating body scheme.

Inventors

ZHANG PEI
CHEN FENGLI
LV YUHUA
SONG BAIYANG
ZHENG SIWEN
WANG SHICHAO
LIU TAISHENG
YUAN ZHU
ZHANG ZHIWEI
LIN FEI
SONG XIAOPENG

Assignees

东方电气(福建)创新研究院有限公司

Dates

Publication Date: 20260512
Application Date: 20260123

Claims (7)

1. The semi-submersible wind power floating body main scale rapid design and performance evaluation system is characterized by comprising a parameterized modeling module, a stability check module, a hydrodynamic analysis module and a sensitivity analysis module; The parameterized modeling module automatically generates a three-dimensional visual model based on main scale parameters and layout patterns of the side stand column, the fan stand column, the heave plate and the heave buoyancy tank; The stability check module calculates the primary stability and generates a stability arm curve; The hydrodynamic analysis module calculates the inherent periods of heave, roll and pitch through the drainage volume, the additional mass and the moment of inertia, and deduces the response amplitude operator to evaluate the wave adaptability; The sensitivity analysis module adopts a sensitivity coefficient to quantify the influence weight of each parameter on stability and hydrodynamic performance.
2. The method for quickly designing and evaluating the main scale of the semi-submersible wind power floating body is characterized by being applied to the system for quickly designing and evaluating the performance of the floating wind power semi-submersible floating body according to claim 1, and comprises the following steps: step S1, inputting main scale parameters and layout patterns of an edge stand column, a fan stand column, a heave plate and a heave buoyancy tank on a parameter input interface of a parameterized modeling module, and rendering a floating body model in real time based on a PyVista library; step S2, in a stability check module, calculating a high-initial-stability GM based on the specification of China class society, and outputting a stability moment arm GZ curve; step S3, in the hydrodynamic analysis module, calculating the natural periods of heave, roll and pitch through the drainage volume, the additional mass and the moment of inertia, and deducing a response amplitude operator RAO to evaluate the wave adaptability; and S4, calculating sensitivity coefficients of the diameter Ds of the side stand column, the diameter Dc of the fan heave plate, the width Wb of the buoyancy tank, the draft T and the gravity center height KG to the initial stability height GM through a sensitivity analysis module.
3. The method for quickly designing and evaluating the main dimension and the performance of the semi-submersible wind power floating body according to claim 2, wherein the layout type comprises classical three-column, central four-column, annular communicated type and T-shaped side column configurations.
4. The method for quickly designing and evaluating the main scale of the semi-submersible wind power floating body according to claim 2, wherein the stability check adopts the formula: ; wherein KB is the height of the floating center, BM is the radius of the stable center, KG is the height of the heavy center, and GM is required to be more than or equal to 0.15m.
5. The method for quickly designing and evaluating the main scale of the semi-submersible wind power floating body according to claim 2, wherein heave period calculation in hydrodynamic analysis is as follows: ; Wherein A z is heave additional mass, and A w is water plane area.
6. The method for rapidly designing and evaluating the main scale of the semi-submersible wind power floating body according to claim 2, wherein the heave response amplitude operator RAO: ; Wherein ω is the wave circle frequency, A is the additional mass of heave, cz is the restoring force coefficient of heave direction, M is the platform mass, and K dir is the direction correction factor.
7. The method for quickly designing and evaluating the main scale of the semi-submersible wind power floating body according to claim 2, wherein the sensitivity coefficient calculation method is adopted: ; Wherein GM 0 is the original primary stability height, ΔGM is the primary stability height change value, P 0 is one of the initial values of the variables of the diameter of the side stand column, the diameter of the fan heave plate, the width of the buoyancy tank, the draft and the gravity center height, ΔP is the change value of the variable, and the change value ranges are-10%, 5% and 10%.

Description

Semi-submersible wind power floating body main scale rapid design and performance evaluation system and method Technical Field The invention relates to the technical field of ocean engineering floating body design, in particular to a system and a method for rapidly designing and evaluating main dimensions of a semi-submersible wind power floating body. Background At present, the traditional main scale calculation needs to carry out modeling and stability hydrodynamic force calculation for a long time, and the problems of long period and high cost exist due to finite element modeling and physical test. Manual modeling in CAD/CAE software (e.g., solidWorks, ANSYS), a single protocol requires 3-5 days of operation. Commercial software (such as DNV SESAM) provides a stability analysis module, but finite element meshing is completed first, and the calculation takes up to 6-12 hours. Geometrical constraints need to be defined item by item, and parameter linkage modification cannot be achieved. In addition, the static stability balance is adopted in the prior art, so that the influence of design change on the GM value cannot be reflected in real time. Hydrodynamic analysis depends on boundary element software such as WAMIT, AQWA and the like, and single-working-condition calculation needs more than 30 minutes. In addition, the novel floating body has insufficient adaptability to specific configurations, such as T-shaped layout and the like. Finally, in the conventional design flow, the engineer needs to manually adjust the parameters and recalculate, and the existing tool cannot quickly predict such nonlinear effects. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a system and a method for rapidly designing and evaluating the main scale of a semi-submersible wind power floating body to solve the problems. The invention provides the following technical scheme: A semi-submersible wind power floating body main scale rapid design and performance evaluation system comprises a parameterization modeling module, a stability check module, a hydrodynamic analysis module and a sensitivity analysis module; The parameterized modeling module automatically generates a three-dimensional visual model based on main scale parameters and layout patterns of the side stand column, the fan stand column, the heave plate and the heave buoyancy tank; The stability check module calculates the primary stability and generates a stability arm curve; The hydrodynamic analysis module calculates the inherent periods of heave, roll and pitch through the drainage volume, the additional mass and the moment of inertia, and deduces the response amplitude operator to evaluate the wave adaptability; The sensitivity analysis module adopts a sensitivity coefficient to quantify the influence weight of each parameter on stability and hydrodynamic performance. The invention also discloses a method for rapidly designing and evaluating the main scale of the semi-submersible wind power floating body, which is applied to the system for rapidly designing and evaluating the main scale of the semi-submersible wind power floating body, and comprises the following steps: step S1, inputting main scale parameters and layout patterns of an edge stand column, a fan stand column, a heave plate and a heave buoyancy tank on a parameter input interface of a parameterized modeling module, and rendering a floating body model in real time based on a PyVista library; step S2, in a stability check module, calculating a high-initial-stability GM based on the specification of China class society, and outputting a stability moment arm GZ curve; step S3, in the hydrodynamic analysis module, calculating the natural periods of heave, roll and pitch through the drainage volume, the additional mass and the moment of inertia, and deducing a response amplitude operator RAO to evaluate the wave adaptability; and S4, calculating sensitivity coefficients of the diameter Ds of the side stand column, the diameter Dc of the fan heave plate, the width Wb of the buoyancy tank, the draft T and the gravity center height KG to the initial stability height GM through a sensitivity analysis module. Further, the layout pattern comprises a classical three-column, a central four-column, an annular communicated type and a T-shaped side column configuration. Further, the stability check uses the formula: ; wherein KB is the height of the floating center, BM is the radius of the stable center, KG is the height of the heavy center, and GM is required to be more than or equal to 0.15m. Further, the heave period calculation in the hydrodynamic analysis adopts: ; Wherein A z is heave additional mass, A w is water plane area, and the rolling and pitching calculation methods are similar. Further, the heave response amplitude operator RAO: ; wherein ω is the wave circle frequency, A is the additional mass of heave, cz is the restoring force coefficient of heave direction, M i