サイエンスソリューションズ List of Products and Services

This document introduces our contracted analysis and development solutions in electromagnetic field analysis. In the development and design of electromagnetic devices, electromagnetic field analysis has become an essential technology. Properly setting the specific conditions for electromagnetic field analysis requires not only analytical skills to address the issues but also knowledge and experience regarding analysis methods. As your problem-solving partner, our company will work with you on unprecedented themes, from "clarifying fundamental issues" to "discussing the results obtained." [Features] ■ Solving analysis challenges that are difficult for other companies ■ Responding to short-term analysis needs such as failure analysis ■ Including development and customization in our services *For more details, please refer to the PDF document or feel free to contact us.

The eddy current equivalent circuit method (hereinafter referred to as the CLN method) is a technique that represents the eddy current field using an equivalent circuit (ladder circuit), significantly reducing the computational load. Our company has developed a method that allows for the evaluation of Ritz wires, which have been difficult to analyze using the finite element method due to the complexity of their system, by applying the CLN method in a realistic timeframe. In this method, the Ritz wire is first homogenized, and then the AC loss is determined through AC analysis using the finite element method. By employing the Biot-Savart CLN method for the homogenization calculation, it eliminates the need to create a mesh for the air region of the analysis model. Additionally, by using an automatic mesh generation tool, the burden of mesh creation is significantly reduced. 【Features】 - Homogenization calculation of Ritz wires using the Biot-Savart CLN method - Evaluation of AC loss through AC analysis of the finite element method using the results of homogenization - No need to create a mesh for the air region in the Biot-Savart CLN method - Automation of mesh creation (up to 4-strand twisting) *For more details, please refer to the PDF document or feel free to contact us.

At SSIL, we have developed a method for evaluating the AC resistance of Litz wire coils using the "New Eddy Current Equivalent Circuit Method" (hereafter referred to as the CLN method). This method allows for the efficient and practical evaluation of the AC resistance of Litz wire coils. This document provides an overview of the method, so please refer to it. Our company offers analyses using the CLN method, including the evaluation of AC resistance for Litz wire coils. If you are interested, please feel free to contact us. *At SSIL, we enter into confidentiality agreements with our clients and manage confidential information in accordance with established procedures.

EMSolution is an electromagnetic field analysis software that has introduced and improved the edge element finite element method since its early stages. In addition to the introduction of edge elements and the ICCG method, it has independently developed and implemented advanced analysis techniques such as the nodal force method and the sliding method, enabling large-scale and high-precision analyses to be performed quickly.

EMSolution-Lite is a budget version of EMSolution (electromagnetic field analysis) specifically designed for two-dimensional analysis. While the analysis model is limited to two dimensions, it allows users to utilize most of EMSolution's features (equivalent to the Professional package) for models with up to 100,000 elements. It was created in response to users' demands for an easy way to perform two-dimensional electromagnetic field analysis. For example, it can perform no-load analysis of PM motors as well as PWM voltage source analysis. Additionally, it can analyze the slip-torque characteristics of induction motors. Circuit and motion coupling analysis for electromagnets and actuators is also possible. We encourage you to use it for two-dimensional analysis and parameter surveys of motors, actuators, and more.

This document presents examples of electromagnetic field analysis focused on permanent magnet synchronous motors. 【No-load Analysis】 - Cogging torque waveform - Induced voltage (back electromotive force) waveform 【Load Analysis】 - Explanation of rotating magnetic field using magnetic flux line diagrams - Torque waveform at rated current - Current-torque characteristics - Current phase angle-torque characteristics 【Coupled Analysis / Parametric Analysis】 - Current waveform - Speed-torque characteristics and efficiency map We also explain what can be understood from these results and how they can be useful for design and other purposes. If you are interested in electromagnetic field analysis of permanent magnet synchronous motors, please take a look. *For more details, please refer to the PDF document or feel free to contact us.

Tracing back to the foundations of a wide range of technologies is something that we cannot accomplish on our own. Therefore, we create optimal solutions through partnerships with universities, research institutes, and companies both inside and outside the organization.