An open-source library for hydrodynamic simulation of marine structures

Abstract

The work focuses on an open and collaborative approach for hydrodynamic simulations of multibody operations. It builds on Vessel.js, an existing web-based ship design library, by modeling the interaction between entities and creating multibody models able to output different responses. To develop the cases here studied, the simulations are decomposed into single elements to understand their behavior separately before making them interact with other elements to create a multibody simulation. In the process, different hydrodynamic models are used to analyze the bodies according to the requirements of the simulations and the needed level of complexity. The simulations are coded in JavaScript and visualized in a web environment, with the option of using external hydrodynamic analyzes, which in this work were exemplified using a commercial software that adopts the linear potential wave theory. The paper concludes with a discussion about future applications of methods and simulations.

Interactive Ship Flow Simulation Enhanced By Neural Network Model In A Web Environment

“…Such examples must be available openly and online, in a similar way to the Vessel.JS library (Gaspar 2018;2022). This allows peers to build on each other and create a larger library of similar problems, as discussed by Miquel et al (2020), fostering collaboration in the field. The method also allows for local installations and the handling of IP for commercial use.…”

Challenges when creating a cohesive digital twin ship: a data modelling perspective

“…For example, results of motion response analyses on relevant loading conditions can be stored in a separate JSON file containing the response amplitude operators (RAOs) for various waves. The file is listed as an analysis under an identification tag and can later be validated with operational data or used to create dashboards simulating an operation to be performed (Miquel et al 2020). The last component, measured data, is collected from sensor streams and archived for subsequent use.…”