Holistic Approach to Ship Design

Abstract

The recently completed Horizon 2020 European Research project—HOLISHIP—Holistic Optimization of Ship Design and Operation for Life Cycle (2016–2020) has developed suitable tools and software platforms which are necessary for the creation of innovative design solutions meeting the set low-emission strategic objectives. The present paper introduces an innovative, holistic approach to ship design and the development of integrated design software platforms and tools, which are used in practical applications. In the era of the 4th industrial revolution, this project sets out to substantially advance ship design via the introduction of a fully computerized, multi-disciplinary optimization approach to ship design and life-cycle operation. The approach enables the exploration of a huge design space in a relatively short time, as well as the distributed/multi-site working and the virtual reality testing; thus, it is a strong asset for the development of innovative maritime concepts in response to the needs of the 21st century.

Enhancing hull form design for robust efficiency: A data-enhanced simulation-based design approach

“…First, regarding challenge 1 -limitation of the design space, the proposed method features initial hull form recommendations using the hull form database (1 in Figure 1) and narrowing down the design space with a CFD calculation Surrogate model by machine learning (2 in Figure 1). Next, for challenge 2, the proposed method addresses this challenge through two methods: proposing robust hull form selection using the Visualization method of the design space shown in 4 in Figure 4 (Ichinose, 2022), and multi-objective optimization considering general arrangement, stability, structure, and productivity (Papanikolaou, 2022). Lastly, for challenge 3, the proposed method enables data reuse in similar projects by creating a database of all CFD calculation results and hull information, including performance evaluation results of hull forms discarded during optimization calculations, by databasing them based on the Hull-form Coordinate System treating each hull shape like a gene, thereby creating a cycle of data.…”

“…Bulk carriers, tankers, and container ships, which are predominantly built in East Asia, are often designed under strict time constraints due to negotiations with shipowners, making it difficult to move away from Design spiral methods. Papanikolaou, in the HOLISHIP project (Papanikolaou, 2022) aimed at Optimization, is constructing surrogate models for CFD calculations, which have been a bottleneck in multidisciplinary optimization due to their time dominance. Additionally, in adopting a system-based strategy, efforts are being made to optimize the entire process using a fast-responsive simulator known as 1D CFD (Perabo et al, 2020).…”

Simulation-Driven Robust Optimization of the Design of Zero Emission Vessels

“…Aristotle in Metaphysics (H-6, 1045a8-10) [16] examines the problem of the unity of definition and offers a new solution based on the concepts of potentiality and actuality. Holistic ship design approaches have been introduced in [17][18][19], where the generic ship design optimization problem is defined and presented in its holistic nature. The typical process flow of computational methodologies for performing all the necessary computations included in the different design aspects is also defined within the same context of the holistic ship design theory [20,21] aimed at the systematic, risk-based optimization of AFRAMAX tankers, focusing on the cargo carrying capacity, steel weight and accidental oil outflow.…”

Ship design optimization framework

“…Architects and engineers accomplish the design stage by following the principle of design spiral [1] shown in Figure 1. This method is an iterative process that usually starts from basic preliminary information and is orbiting around a core which represents the real ship with all the approved details.…”