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Machine Dynamics Lab
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A machine dynamics lab that analyzes, controls, and predicts the vibration of rotating machinery.
AboutAbout the lab
Analyzing, controlling, and predicting machine dynamics
The lab studies the motion and vibration of rotating machines and of machines made up of many connected parts.
Focusing on targets such as rocket turbopumps and automotive turbochargers, it builds models that describe their motion and develops analysis methods.
In addition to devising new actuators and dampers, it works on technology that detects the internal state of a machine from its vibration and predicts failures.
The lab carries out many industry-academia collaborations and joint research projects, and welcomes students interested in going on to a PhD.
Key terms
- Rotor
- A shaft that rotates inside a turbine, pump, motor, or similar machine, together with the parts attached to it
- Multibody dynamics
- A mechanics method that calculates and examines the motion of many parts connected by joints and springs all together
- Actuator
- A device that converts the power of electricity or air into motion that moves things. A motor is one example
- Digital twin
- A reproduction of the motion and state of a real machine, captured inside a computer
NewsLab news
Professor Inoe received the Academic Achievement Award of the Dynamics, Measurement and Control Division of the Japan Society of Mechanical Engineers, among other awards
Research results accepted for publication in ASME Journal of Gas Turbine and Power
Research results published in Nonlinear Dynamics
An undergraduate student received the Best Presentation Award at a lecture meeting of the Tokai Branch of the Japan Society of Mechanical Engineers
ResearchResearch themes
The lab's guiding theme is "Physics-Based Digital Twin and Inverse Modeling for Machine Health." It works on digital twins that reproduce machine motion with physics-based models, and on technology that estimates the internal state of a machine from vibration and other signals. Drawing on its expertise in nonlinear dynamics and electromagnetic field analysis, it advances modeling, analysis, and device development.
*Illustrative imageVibration Analysis of Rotors and Coupled Systems
The lab models entire machines, such as rocket turbopumps, in which fluid, heat, and electromagnetic forces interact with the motion of the rotating shaft (rotor), and analyzes their vibration. It focuses on analysis that takes into account the nonlinearity of fluid and electromagnetic forces.
*Illustrative imageMultibody Dynamics Analysis
This research solves the motion of complexly connected machines as a whole. It covers the vibration of rotating shafts when the base moves substantially, as on ships and aircraft, as well as the behavior of off-road vehicles while driving and the detection of loosening wheel nuts.
*Illustrative imageDevelopment of Actuators and Dampers
The lab devises actuators that can move in multiple directions with a single unit. It develops a robotic eyeball, small vibration motors that convey tactile sensations, and resin pneumatic motors that can be used inside MRI and CT scanners. It also develops centrifugal pendulum dampers that suppress vibration, as well as dampers and magnetic bearings for use at cryogenic temperatures.
*Illustrative imageCondition Monitoring, Diagnosis, and Prediction
To detect failures and abnormalities early in machines that run for long periods, the lab develops methods for monitoring and diagnosing machine condition from vibration signals. It works on estimating bearing wear by comparison with mathematical models, and on methods for determining machine characteristics from vibration during operation.
MembersFaculty
The members of the Machine Dynamics Lab consist of faculty, secretaries, and students in the doctoral (including working professionals), master's, and undergraduate programs.As of 2026
- ProfessorTsuyoshi Inoe
- Associate ProfessorAkira Heya
- Assistant ProfessorRiko Ogawara
- Project Assistant ProfessorTakashi Miyamoto
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Francis Turbine High flow” The original uploader was Stahlkocher at German Wikipedia. / CC BY-SA 3.0 (cropped)
- Vibration Analysis of Rotors and Coupled Systems: “STAL Ljungström steam turbine rotor 50MW” 作者不詳 / Public domain (cropped)
- Multibody Dynamics Analysis: “Four Bar Linkage Mechanism” Mahmood Lahroodi / CC BY-SA 4.0 (cropped)
- Development of Actuators and Dampers: “Torque Converter Centrifugal Pendulum Absorber” LuK USA LLC / Michael Poehler / CC BY 3.0 (cropped)
- Condition Monitoring, Diagnosis, and Prediction: “Balanset-1A portable balancer kit with tablet” NotecA / CC BY-SA 4.0 (cropped)
- Related lab (Solid Mechanics Lab): “Buckledmodel” Grahams Child / CC BY-SA 3.0 (cropped)
- Related lab (Fluid Dynamics Lab): “SR-71 LASRE cold test” NASA / Public domain (cropped)
- Related lab (Control Systems Engineering Lab): “ESA lunar lander DLR at ILA - Day 2” DLR German Aerospace Center / CC BY 2.0 (cropped)
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