Tetsuo Tomiyama

Tetsuo Tomiyama
International Professional University of Technology in Tokyo · Vice President and Dean of Faculty of Technology

PhD, MSc, BSc

About

289
Publications
85,403
Reads
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7,964
Citations
Citations since 2016
16 Research Items
3145 Citations
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
Additional affiliations
April 2020 - May 2020
International Professional University of Technology in Tokyo
Position
  • Vice President
October 2018 - present
Cranfield University
Position
  • Professor
October 2012 - September 2018
Cranfield University
Position
  • Professor
Education
April 1982 - March 1985
The University of Tokyo
Field of study
  • Precision Machinery Engineering
April 1980 - March 1982
The University of Tokyo
Field of study
  • Precision Machinery Engineering
April 1976 - March 1980
The University of Tokyo
Field of study
  • Precision Machinery Engineering

Publications

Publications (289)
Article
Full-text available
The changing nature of manufacturing, in recent years, is evident in industry’s willingness to adopt network-connected intelligent machines in their factory development plans. A number of joint corporate/government initiatives also describe and encourage the adoption of Artificial Intelligence (AI) in the operation and management of production line...
Article
Smart products supported by new step-changing technologies, such as Internet of Things and artificial intelligence, are now emerging in the market. Smart products are cyber physical systems with services through Internet connection. For example, smart vehicles equipped with advanced embedded intelligence are connected to other vehicles, people, and...
Conference Paper
Full-text available
Digital Twin (DT) is a dynamic digital representation of a real-world asset, process or system. Industry 4.0 has recognised DT as the game changer for manufacturing industries in their digital transformation journey. DT will play a significant role in improving consistency, seamless process development and the possibility of reuse in subsequent sta...
Conference Paper
Full-text available
The changing nature of manufacturing, in recent years, is evident in industries willingness to adopt network connected intelligent machines in their factory development plans. While advances in sensors and sensor fusion techniques have been significant in recent years, the possibilities brought by Internet of Things create new challenges in the sca...
Article
Full-text available
In this work we present a control and trajectory tracking approach for wiping the train cab front panels, using a velocity controlled robotic manipulator and a force/torque sensor attached to its end-effector, without using any surface model or vision based surface detection. The control strategy consists in a simultaneous position and force contro...
Article
Production systems are a typical example of cyber-physical systems (CPS) in which a variety of machines, actuators, sensors and control systems are interwoven to produce products as efficiently as possible. Even though sophisticated condition monitoring systems are deployed, stoppage, breaks, and other types of failures still happen. To avoid catas...
Article
Full-text available
This paper presents and briefly describes the methodology used to get the systems and conceptual design of a train cab front cleaning robot. While the sides of the trains are cleaned by a mechanised washer, the cab fronts are cleaned manually which imply a number of health and safety issues. The aim of this project is first to carry out an analysis...
Article
Full-text available
The aero-engine Maintenance-Repair-Overhaul (MRO) service provider has begun to adopt the product-service system (PSS) offering in order to maintain their competitiveness. Such total solution approach combines an availability-based service contract with product offerings (e.g., leasing). The current MRO service provider's contract design method is...
Article
Full-text available
One of the most critical elements in the ‘productisation’ of service adopted by today's aero-engine Maintenance Repair and Overhaul (MRO) companies is the match between customer demands and the operational capabilities of the MRO shop. Currently, the service contract is offered based upon experience and intuition rather than on scientific approach....
Article
Full-text available
Function structure influences on systems architecture (or product architecture). This paper discusses a design method for creative design solutions that focuses on the allocation of functions. It first proposes a theory called “Function Allocation Theory” to allocate a function to an appropriate subsystem or component during the systems decompositi...
Chapter
This chapter discusses the impact of design research on practice by taking two cases; function modeling and self-maintenance machines deployed from the function modeling research.
Article
The main drivers for the development and evolution of Cyber Physical Systems (CPS) are the reduction of development costs and time along with the enhancement of the designed products. The aim of this survey paper is to provide an overview of different types of system and the associated transition process from mechatronics to CPS and cloud-based (Io...
Article
We propose a supervisory control design process that merges descriptions at the level of the system architecture with specific design methods related to supervisory control synthesis. The advantages of this proposal are a better integration of the supervisory control design with other design processes and stakeholders, improving the potential to au...
Article
We propose a method for automatically extracting information that is relevant for the controller design activities from a model that represents architecture-level information and concerns, and show how the extracted information can be analyzed for control design purposes. Control design is an inherently multidisciplinary activity that can benefit f...
Article
Maintenance is an efficient and cost effective way to keep the function of the product available during the product lifecycle. Automating maintenance may drive down costs and improve performance time; however capturing the necessary information required to perform certain maintenance tasks and later building automated platforms to undertake them is...
Chapter
Full-text available
This chapter looks at the overall theme of automating maintenance practices with a particular focus upon the application of robotics within this field. Covering the current state of the art in automating maintenance processes this chapter also looks at the current challenges to moving beyond simple inspection and diagnosis to the design and constru...
Chapter
Managing complexity is a crucial task during the development process of multidisciplinary complex products. To achieve an efficient and effective development process of such a product, all the stakeholders must maintain a common understanding of the system and mutually linked detailed information of the product. This chapter proposes system archite...
Article
Intricate failures at the system integration phase of the design are mostly generated by interactions of product modules or/and engineering domains. Modules of the product are tested independently and when their integration is performed, design failures are detected. This significantly delays the machine development. This paper aims at introducing...
Article
Current mechatronic products tend to be very complex systems. A design team is necessary to develop such products, and appropriate modeling and design support tools are essential to aid the design team. The Automatic Generation of Control Software for Mechatronic Systems project aims to develop a set of prototype tools and a framework to integrate...
Article
The main contribution of this paper lies in the observations done in industry resulting in an approach of integrating the Function-Behaviour-State (FBS) model with user workflow and interface models to create complex system overview. On one side of the spectrum it focuses on modelling the usage of the system, while on the other side it considers th...
Article
Manufacturers expanding their business globally need to understand and analyze long-term trends of technology innovation relevant to their products as well as future socio-economic development of the target markets. Qualitative scenario modeling methods can evaluate opportunities and risks of their products in a specific market. To obtain quantitat...
Conference Paper
Full-text available
The business model of high-value capital assets is shifting from purchasing a physical product to acquiring a result or a function supported by the product combined with a number of related services. One such service, maintenance, is perhaps the most efficient way to keep the function available during the product lifecycle. Automation has played a...
Article
Full-text available
Manufacturers aim to design product-service systems (PSS) which integrate services with products to attain sustained competitive advantage from a life cycle perspective. PSS design should be customised solutions which are aligned to integrated stakeholders' capabilities, a subject which the extant literature has not sufficiently addressed. This pap...
Article
Function modeling is considered potentially useful in various fields of engineering, including engineering design. However, a close look at practices reveals that practitioners do not use formal function modeling so much, while the concept of “function” frequently appears in many practical methods without a vigorous definition. This paper tries to...
Article
Qualitative reasoning can generate ambiguous behaviors due to the lack of quantitative information. Despite many different research results focusing on ambiguities reduction, fundamentally it is impossible to totally remove ambiguities with only qualitative methods and to guarantee the consistency of results. This prevents the wide use of qualitati...
Chapter
The creation of an adequate architecture is an essential ingredient to develop complex systems in an effective and economical way. In spite of many advances in model-based development, architecture creation still is more art than systematic engineering. This chapter describes a method and tool to support the architectural phase of the development o...
Article
System architecting of mechatronic systems is to develop system decomposition and to define specifications of subsystems and interfaces. This study integrates a CAD for system architecting with a service CAD and life cycle simulation to model and reason about systems architecture and maintenance-related services as well as monetary flows between th...
Article
This paper reviews the breadth of complexity of the design process, products, manufacturing, and business. Manufacturing is facing unprecedented challenges due to increased variety, market volatility and distributed global manufacturing. A fundamental residue of globalization and market uncertainty is the increasing complexity of manufacturing, tec...
Article
Full-text available
Conceptual design of modern products has become complex due to an increasing number of subsystems and components comprising the system and the multi-disciplinarity of the employed design knowledge. The paper proposes a product modeling framework and a CAD system for conceptual design of complex products focusing on hierarchical system decomposition...
Article
To support performance-oriented modelling for sustainable building design, one must both model geometric interdependencies in a parametric way and include non-geometric physical, environmental, and economic design reasoning. For this purpose, this paper ...
Article
This work aims at explicitly modelling key concepts of the evolution process to support the product development process of complex multi-disciplinary systems such as Magnetic Resonance Imaging (MRI) systems. The key concepts span over different domains of the product development process: product use (workflow models), system functionality (Function...
Article
Offshore operational conditions for wind farms differ from onshore especially because of their exposure to extreme weather, their remote locations and their inaccessibility in certain periods of the year. This brings a new challenge for the wind energy industry, which faces the need of more reliable systems. A common approach to improve reliability...
Article
In many cases, the use of product configurators provides a number of benefits for engineering-oriented companies, such as shorter lead times, the use of fewer man hours, and improved product quality. However, not all of these projects are successful. ...
Article
Life cycle engineering (LCE) is a key concept for promoting environmentally sustainable practices among manufacturing firms. A major hurdle in the implementation of LCE is the lack of a systematic and strategic method to design or plan an entire product life cycle. To address this issue, this keynote provides a framework for life cycle development...
Article
Modern mechatronics systems are increasingly becoming complex in terms of the size and multi-disciplinarity. System architecting of such multi-disciplinary systems defines subsystems and their interfaces through hierarchical system decomposition. As opposed to traditional system decomposition methods using building blocks associated with functions,...
Article
Long-term relationships between original equipment manufacturers (OEMs) and stakeholders in their supply chain and end-of-life process can be designed, while considering uncertainty in future environmental legislation changes. This study proposes a method to analyze the capability of OEMs to reconfigure their supply chain and end-of-life operations...
Article
Full-text available
Developing multi-disciplinary products presents cross-disciplinary problems that are difficult to predict and to solve. Unfortunately, those cross-disciplinary problems are often discovered only at a later stage of the design through physical prototypes and can lead to modification of the conceptual design of a product. This is extremely costly and...
Article
Efficient integration of systems in the mechatronic industry is critical for complex product development and is still challenging. A particular example of this situation can be pinpointed in the development of control software for mechatronic products: design is not carried out in a concurrent way in order to exploit the synergy among domain expert...
Article
With increasing applications of RFID (Radio Frequency Identification) technology, reliability requirements for the deployment of RFID readers have become more critical. For a robust deployment of a RFID network, a systematic solution was proposed in ...
Article
Life cycle design requires a good design method to achieve less environmental impacts and life cycle costs. This paper introduces a theory of product life cycle dynamics in analogy of control theory. The paper presents a life cycle model described with a block diagram, which is the standard representation of control systems. The model can simulate...
Article
Creating a product that satisfies the user in a multi-disciplinary development environment is not a trivial task. Explicitly modelling the use of the product prior to realisation is recommended to give all stakeholders involved in the design process a shared model of what the system should do (functions). This chapter proposes to use a flowchart d...
Conference Paper
The goal of this work is to practically determine the role of product architecture models to support communication for improving development practices of complex mechatronic products. This paper contains descriptions, observations, and lessons learned from case studies in which the authors tested a language to represent product architectures during...
Conference Paper
There is a rather recent tendency to define the physical structure and the control structure of a system concurrently when designing the architecture of a product, i.e., to perform codesign. We argue that co-design can only be enabled when the mutual influence between physical system and control is made evident to the designer at an early stage. Th...
Conference Paper
From interviewing developers and analyzing examples from industry, the authors have concluded that communication issues during the design process are a key factor of the complexity of product development. These communication issues stem from a lack of insight in the workflow between designers and their resources, and the lack of insight in the rela...
Article
The divide-and-conquer principle is a technique to obtain solutions for a large-scale problem by dividing it into smaller and manageable subproblems and by integrating these subsolutions. In engineering design, the principle is often used not just as a complexity management method but also as an embodiment method, although its formalization is uncl...
Article
System architecting in mechatronic systems design is a crucial task to define physical and logical configurations of subsystems and components that realize desired functions and behaviors. Particularly, it is crucial to consider sensor–actuator configurations that control the quality of desired functions. The paper proposes a computer-based tool ba...
Article
Development of mechatronic systems requires collaboration among experts from different design domains. In this paper the authors identify a set of challenges related to the design of mechatronic systems. The challenges are mostly related to integration of design and analysis tools, and automation of current design practices. Addressing these challe...
Article
This paper develops a modularization scheme based on the functional model of a system. The modularization approach makes use of the function-behavior-state (FBS) model of the system to derive the entity relations. The design structure matrix (DSM) is automatically constructed based on the FBS model. In this way the tedious work of filling the DSM e...
Article
In this paper, a physically interactive control scheme is developed for a manipulator robot arm. The human touches the robot and applies force in order to make it behave as he/she likes. The communication between the robot and the human is maintained by a physical contact with no sensors. The intent of the human is estimated by observing the change...
Conference Paper
The design methodology developed by Pahl and Beitz (P&B) is one of the most widely taught design methodologies. However, this methodology is not easy to correctly exercise for non-experienced designers such as students. At TU Darmstadt in Germany, a method was developed to make students to realize the background philosophy of P&B, to reduce misunde...
Conference Paper
This research addresses two aspects of multi disciplinary product development; understanding what the customer needs and translating this knowledge effectively into a transparent system architecture. A clear overview and understanding of this architecture can be obtained by using function models. How to make an effective translation from the custom...
Conference Paper
Design of mechatronic systems is becoming increasingly complex. Companies must continuously reduce time-to-market while increasing the quality, diversity, and functionality of their products. As a result, more and more specialists from various domains are needed to develop such products. To reduce time-to-market, many companies look to reducing the...
Conference Paper
Reconfigurable systems that maintain a high level of performance under changing operational conditions and requirements are an ongoing research challenge. Many existing systems are able to work under narrow operational conditions only. They should perform the configuration transitions from the current state to a desired one smoothly. The question i...
Conference Paper
System architecting is a process to iteratively refine technical specifications assigned to subsystems. System architecting results in compositions of systems (system architecture) as well as system models that are verified and validated in succeeding design stages. To decrease potential design faults and unnecessary design iterations, such system...
Article
Full-text available
The field of Design Theory and Methodology has a rich collection of research results that has been taught at educational institutions as well as applied to design practices. First, this keynote paper describes some methods to classify them. It then illustrates individual theories and methodologies focusing on industrial and educational use. Theorie...
Article
This paper aims at identifying the differences between skilled and unskilled welders by analysing the position data obtained with a three-dimensional motion capture system. Using the position data of markers the tip point position of the torch is constructed. The kinematic data of the torch tip obtained from various skilled and unskilled performanc...
Conference Paper
Full-text available
Software development for the control of mechatronic systems in industry still suffers from the lack of integration of the domains involved, the lack of verification tools, and the fact that the physical structure of mechatronic systems, irregular situations, and service functions are often insufficiently taken into account. To address these problem...
Article
This paper addresses multi-objective optimization from the viewpoint of real-world engineering designs with lots of specifications, where robust and global optimization techniques need to be applied. The problem used to illustrate the process is the ...
Article
In this chapter, a systematic method to generate design concepts of integrated product-service offerings, or Product/Service-Systems (PSS), is proposed. This method uses formal PSS modelling and reasoning facilities of a service CAD tool. Such a formal modelling method and reasoning facilities are crucial to overcome the limitations of existing too...
Book
Full-text available
Generating sustainable product life cycles explains the importance of a holistic long-term planning and management approach to reaching a maximum product benefit over the entire life cycle. The paradigm of thinking in product life cycles supports manufacturers in shaping successful products. The book promotes various methods and tools for life cycl...
Article
This paper proposes ISCL, Integrated Service CAD and Life cycle simulator. ISCL plays the role of CAD/CAE tools for product design in Product Service Systems (PSSs) design. In ISCL, the service CAD supports systematic generation of alternative PSSs based on service modeling, and the life cycle simulator analyzes their economic and environmental per...
Conference Paper
This paper discusses problems in complex mechatronic system design observed in an industrial setting. In the process of adding functionality to mechatronic systems it is important to manage complexity. It is observed that an important aspect in managing complexity is keeping a systemwide overview and understanding among system architects and engine...
Conference Paper
Development of modern products is complex and exceeds the comprehension of a single engineer, who cannot understand every detail of a product. Some of the current approaches to deal with the complex product design are based on the "divide-and-conquer" (D&C) approach. Those approaches in their present form, however, reveal shortcomings in many multi...
Conference Paper
Development of mechatronic products, and their controllers, carries a series of difficulties related mainly to product complexity. This paper discusses such difficulties and introduces a proposal of a framework of prototype tools that aim to support controller design for mechatronic systems by providing control software generation. This work emphas...
Article
This paper aims at identifying the differences between skilled and unskilled welders by analyzing the position data obtained with a 3D motion capture system. Using the captured position data of various markers on the arm of the welder and the welding torch, the tip point position of the torch, the elbow angle and roll angle of the human arm are con...
Article
Full-text available
This study attempts to obtain more detailed knowledge of failures of wind turbines (WTs) by using the German "250 MW Wind" test program database. Specific objectives are to show the reliability of some major components and to analyze how their design has advanced through time, what the main failures are, and which technologies have proven to work....
Article
Full-text available
This work is aimed at establishing a common frame and understanding of function modeling (FM) for our ongoing research activities. A comparative review of the literature is performed to grasp the various FM approaches with their commonalities and differences. The relations of FM with the research fields of artificial intelligence, design theory, an...
Chapter
Full-text available
PKM milling machines have promising advantages compared to SKM milling machines, such as a higher stiffness-to-mass ratio, enabling a better dynamic behaviour. Errors in the PKM driving chains cause position errors of the end effecter. Its parallel construction and non-uniform position error patterns make finding the error sources a challenging tas...