12th France - Japan Congress,  10th Europe - Asia Congress on


Plenary Session

Mr. Jean-Remy IMBERT

Representative Director of Digital Product Simulation K.K.
DPS is a French Engineering and software development company specialized in "CAD & CAE Integration", with offices in France, USA and Japan.

Title of Plenary Lecture:
"A practical illustration of the Development of mechatronic systems involving co-simulation.
The management of knowledge and collaboration with the karren software."

Complex systems are complex!
Their Design involves a combination of multiple disciplines, multiple stakeholders and a multitude of software tools. This heterogeneous environment exposes the project to many risks of delay or even failure.
The V-Model is a representation of one principle: organizations must check the compliance of the system they are designing through an approach of decomposition of Requirements and Functions. For this, they use modeling and simulation tools.
They confront the requirements of customers to the performance of their Design. They model, simulate and test the Functions of their products.
When we talk about simulating the behavior of mechatronic systems such as Window lift regulator, Power Sliding Door, Electro Mechanical Actuator, new practical problems arise:
- Co-simulations of mechatronics phenomenon by using 1D and 3D solvers
- Digital Continuity between Concept and Development phases
- Management of the Collaboration between teams
This plenary session will illustrate practical ways to handle these difficulties.

Professor Peter Weiliang Xu

Fellow of Engineering New Zealand Chair in Mechatronics Engineering, Department of Mechanical Engineering, The University of Auckland,
New Zealand

Title of Plenary Lecture:
"Soft Robotic Digestion Organs"

This plenary talk introduces our decade-long research program on soft robotics for human digestion system including tongue, esophagus and gastric tract. These robotic organs are developed for in vitro biomimetic simulation of human digestion process and the interaction of food and digestive organs with food to test medical hypotheses and assist in developing novel food products. The biological principle and the biomimetic design of these robotic organs are presented with focus on their distributed actuation, sensing and closed-loop control. Science challenges in the soft robotics are outlined, including data-driven modelling and control. Case studies of the applications in food sciences and medicine will be shown.

Professor Makoto Iwasaki, Dr. Eng., IEEE Fellow

Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology, Japan

Title of Plenary Lecture:
"Robust Full-Closed Control-Based Vibration Suppression for Positioning Devices with Strain Wave Gearing"

The plenary lecture presents a practical robust compensator design technique for precision positioning devices including strain wave gearing. Since HarmonicDrive® gears (HDGs), typical strain wave gearing, inherently possess nonlinear properties known as Angular Transmission Errors (ATEs) due to structural errors and flexibility in the mechanisms, the ideal positioning accuracy corresponding to the apparent resolution cannot be essentially attained at the output of gearing in the devices. In addition, mechanisms with HDGs generally excite resonant vibrations due to the periodical disturbance by ATEs, especially in the condition that the frequency of synchronous components of ATE corresponds to the critical mechanical resonant frequency. The lecture, therefore, focuses on the vibration suppression in positioning, in order to improve the performance deteriorations by applying a robust full-closed control. In the compensator design, under the assumption that full-feedback positioning systems can be constructed using load-side (i.e. output of the gearing) sensors, an H_inf compensator design has been adopting to shape frequency characteristics on the mechanical vibration, with robust control properties against parameter variations. The proposed approach has been applied to precision motion control of actual devices as servo actuators, and verified through numerical simulations and experiments.
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