Reducing simulation turnaround time by up to 40 percent while shortening development cycles from months to weeks

Addressing complex challenges via Siemens solutions

FEAC Engineering (FEAC) is an advanced engineering and software solutions provider founded in 2014, with offices in Patras and Athens, Greece. As a certified partner of Siemens Digital Industries Software, FEAC supports industrial organizations in addressing complex engineering challenges using a simulation-driven and data-centric approach, namely the Simcenter™ software portfolio, which is part of the Siemens Xcelerator business platform of software, hardware and services.

The company combines computer-aided design (CAD), computer-aided manufacturing (CAM) and computer-aided engineering (CAE) technologies, high-fidelity multiphysics simulations (finite element method (FEM), computational fluid dynamics (CFD) and system-level modeling) and proprietary software development. Thus, the company can deliver integrated solutions across the full product lifecycle – from concept design and engineering validation to operational optimization.

At the core of FEAC’s offering lies the development of a physics-informed Digital Twin, where simulation models are fused with real-world data and advanced analytics (including artificial intelligence (AI)-based reduced order models (ROMs)) to enable predictive insights and decision support.

FEAC’s innovation capabilities have been recognized at a European level, with its technologies receiving distinctions such as the European Defense Agency (EDA) Innovation Prize and the Seal of Excellence, reflecting technical excellence and strong commercial potential.

By bridging engineering expertise, advanced simulation and custom software platforms, FEAC delivers scalable, high-impact solutions across sectors, including maritime, energy, defense and industrial manufacturing.

Providing simulation-driven and hybrid Digital Twin solutions

FEAC Engineering works across multiple industries and engineering projects rather than focusing on a single application domain. Although many customer challenges share common characteristics, FEAC tailors its approach to each project, combining proven simulation methodologies with customized workflows that address specific technical and business requirements. This flexibility allows FEAC to support customers designing, validating and operating complex systems under demanding real-world conditions.

Leveraging Siemens simulation technologies

FEAC Engineering leverages the advanced simulation capabilities of the Simcenter portfolio as the backbone for simulation-driven engineering within the broader Siemens Xcelerator ecosystem. Using Simcenter technologies, FEAC enables high-fidelity analyses across structural mechanics, CFD, thermal behavior, acoustics and multiphysics interactions, allowing engineers to evaluate product performance under realistic operating and boundary conditions.

By embedding simulation seamlessly into engineering workflows, FEAC supports the transition from isolated analysis tasks to integrated, lifecycle-oriented engineering processes, where design, validation and operation are interconnected within a unified digital framework.

Complementing commercial tools, FEAC develops proprietary simulation technologies to address advanced and domain-specific challenges. At the core lies PITHIA, a high-performance boundary element method (BEM)-based solver, tightly integrated within Simcenter 3D software. This enables users to extend standard simulation workflows with high-fidelity analyses in corrosion, underwater acoustics, vibroacoustics and electromagnetic behavior – all within a consistent simulation environment.

To bridge the gap between high-fidelity simulation and operational deployment, FEAC incorporates ROMs and a physics-informed Digital Twin, enabling near real-time predictive capabilities. Using this approach, simulation is no longer confined to the design phase but becomes an active decision-support tool during asset operation, delivering continuous, physics-based insights throughout the lifecycle.

Helping customers navigate increasing complexity

FEAC’s customers operate in highly demanding sectors such as defense, maritime, offshore, aerospace, energy and space, where system complexity is rapidly increasing while development timelines continue to shrink.

Engineering teams are under constant pressure to accelerate time-to-market, improve first-pass design accuracy, and comply with strict performance, safety and regulatory requirements.

At the same time, many organizations still rely on legacy development approaches based on conservative overdesign and late stage physical testing, resulting in increased costs, delayed validation and limited visibility into real-world operational performance.

“These approaches used to work, but they no longer scale,” explains Charilaos Kokkinos, chief technology officer (CTO) at FEAC. “Engineering teams need early and continuous insight into real-world behavior – both during design and throughout operation – without the cost and risk of excessive physical prototyping.”

FEAC addresses these challenges by embedding high-fidelity, physics-based simulation from the earliest stages of the development process. During design, simulation models are used to explore design alternatives, quantify performance limits and identify potential risks proactively, significantly reducing the need for costly late-stage
changes.

Beyond design, FEAC extends the value of simulation into the operational phase with ROMs and the AI-enhanced Digital Twin. High-fidelity models are systematically reduced and combined with real-world data, enabling near real-time predictions, anomaly detection and performance optimization during asset operation.

As a result, simulation models evolve into persistent digital assets, continuously updated and reused across design, validation and operation. This approach enables a lifecycle Digital Twin, where engineering and operations are tightly connected, supporting data-driven decision-making and predictive capabilities throughout the system’s life.

Tailoring solutions to customer needs

A key differentiator for FEAC Engineering is its strong emphasis on understanding customer challenges before proposing solutions. FEAC invests significant effort upfront to capture technical constraints, performance targets, operational conditions and business objectives, ensuring they ground every engagement in real-world engineering needs.

Rather than promoting predefined tools or rigid workflows, FEAC designs tailored simulation strategies aligned with each customer’s engineering maturity, internal processes and strategic goals. This ensures solutions are not only technically robust, but also practical, scalable and adoptable within the organization.

This approach is supported by clear project definitions, structured and traceable simulation workflows and close collaboration with customer engineering teams. By combining standardized engineering methodologies with customized execution, FEAC enables customers to gradually adopt simulation-driven engineering practices, delivering measurable value without disrupting existing operations.

This customer-centric and adaptable methodology is a key reason why FEAC can successfully operate across a wide range of industrial sectors, including defense, maritime, energy, aerospace and manufacturing. By focusing on the underlying physics, engineering principles and system behavior, rather than industry-specific constraints alone, FEAC ensures its solutions remain transferable, scalable and have a high impact across domains.

Delivering measurable results

In a representative engagement, FEAC supported an industrial manufacturer struggling with long development cycles and limited early validation capability. By implementing a Simcenter-based simulation workflow, FEAC automated key analysis steps, improved model consistency and enabled reuse of simulation data across design iterations. As a result, the customer reduced simulation turnaround time by up to 40 percent and shortened development cycles from months to weeks. Earlier validation reduced reliance on physical testing and increased confidence in first-pass design decisions. Furthermore, by leveraging high-fidelity virtual prototypes, FEAC helped a customer reduce development costs by up to 83 percent while significantly accelerating design iterations.

FEAC Engineering’s expertise and collaboration with Siemens have also been formally recognized. At the Converge European Leadership Summit 2022, FEAC was awarded Top Sales Partner in Israel and Greece, highlighting its technical capability and successful delivery of Siemens-based solutions.

“Siemens provides the most comprehensive software portfolio for simulations and the Digital Twin on the market today,” says Sotiris Kokkinos, chief executive officer (CEO) at FEAC Engineering. “At FEAC, we take pride in our ability to leverage these world-class solutions to help our customers globally solve their most complex engineering problems with unprecedented speed and precision.”

Building sustainable, future-ready engineering practices

Beyond individual projects, FEAC helps customers build sustainable engineering processes that can scale over time. By combining simulation-driven and data-driven Digital Twin approaches, FEAC supports long-term product optimization, reduced physical testing and more efficient use of engineering resources. Digital engineering workflows also contribute to sustainability by reducing material waste, minimizing rework and enabling more informed decision-making throughout the product lifecycle.

“By utilizing the unmatched depth of the Siemens portfolio, FEAC translates sophisticated engineering physics into a reliable industrial Digital Twin,” says Charilaos Kokkinos. “Our proven expertise allows us to provide high-fidelity validation for the most demanding global projects, ensuring our clients can innovate with absolute confidence.”

Looking ahead, FEAC continues to invest in advanced simulation methods, Digital Twin technologies and the integration of data-driven techniques with physics-based models. This ongoing development ensures FEAC remains a trusted Siemens partner as customer engineering challenges grow in complexity and scope.