• IHI Power Systems Co., Ltd.

IHI Power Systems Co., Ltd. has developed an ammonia-fueled reciprocating engine that reduces greenhouse gas (GHG) emissions by over 90%. As a result, IHI Power Systems achieved the International Maritime Organization's GHG reduction target by 2040. Furthermore, the tugboat with the ammonia engine installed demonstrated the ability to operate safely and stably using ammonia as a fuel.

• IHI Corporation

In recent years, deep-sea autonomous underwater vehicles (AUVs) have attracted attention as a technology with great potential to reduce the manpower required for marine resource utilization. This article provides an overview of the deep-sea AUV designed and manufactured by IHI and used for the Japan Coast Guard's marine survey missions.

• IHI Corporation

On expressways, wrong-way driving and the mistaken entries of pedestrians and cyclists pose major safety challenges. IHI has combined its accumulated sensing technologies with AI-based shape matching to develop a system that accurately detects and warns of wrong-way driving and mistaken entries.

• IHI Corporation

Line simulation is a tool to estimate work progress, flow of goods, and people's movement on manufacturing lines, in logistics warehouses, and at on-site work. This tool contributes to a reduction in lead times and costs by evaluating the efficiency and productivity of the entire process. The application of line simulation to bridge deck slab replacement projects has established an environment that enables shorter quotation time and supports cost reduction through optimized construction planning.

• IHI Corporation

The IHI Group is working on using generative AI, such as large language models (LLMs), to promote digital transformation (DX). This article introduced our initiatives to use LLMs in three phases and the progress of the initiatives.

• SAKAI Toshiya, MUROOKA Takeshi, HIROTA Kentaro

In recent years, the functional requirements for aircraft systems have been increasing due to advancements in electronic technology, leading to greater system complexity. As a result, impact assessments during design changes and certification tests have become more complicated, causing longer development periods. Furthermore, the demand for environmental sustainability has intensified, making the integration of diverse technologies, such as electrification and hydrogen combustion, essential. To address these challenges, IHI is utilizing model-based systems engineering (MBSE) to centralize the management of design information and is developing a design process that streamlines impact assessments across multiple components through collaboration with model-based design (MBD).

• ITO Akira, SHIBATA Ai

Rolling bearings, which are widely used in IHI products, often play a critical role as key components that significantly affect product performance. Therefore, it is essential to estimate and understand their characteristics and performance, such as bearing stiffness and internal stress distribution. To meet the necessity, we are developing an in-house tool to analyze the performance of ball bearings, which are among the most frequently used types of rolling bearings. This paper provides an overview of this tool.