The paper presents an innovative dummy conceived to provide an effective tool for an objective vehicle ride comfort evaluation. The first part of the research includes experimental tests on instrumented seats for evaluating the vertical (cushion) and longitudinal (backrest) acceleration between the vehicle seat and the seated human subject. Experiments have been performed by using a vibrating table fitted with a vehicle seat and by seating directly the subjects on vehicles (cars and light trucks) while running on a test track. The test track includes uneven road and different obstacles. Human subjects have been chosen in order to obtain a high variability in the anthropometric features (height, weight, gender, age). Several test have been also performed with the same subject submitted to the same excitation in order to investigate the inter-subject variability and the intra-subject variability. During the study different seats have been compared. From the acquired data, a mathematical model of the system, human subject + seat has been derived and numerically validated by minimizing the error between the measured and the computed accelerations. The corresponding mechanical device has been built, the MaRiCO dummy. The device is fully adjustable in order to simulate the vibrational behaviour of different human subjects. Particular attention has been devoted to the construction of the springs and of the magnetic damper to reduce as much as possible the friction between the moving components. The dummy rests on the seat by means of special elements that, thanks to their compliance and conformation, act as the tight and the back of human beings. An experimental validation of the dummy has been performed. The device, opportunely tuned and seated with the same posture of the corresponding human subject is able to reproduce the acceleration between the subject and both the cushion and the backrest.
Skip Nav Destination
ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 4–7, 2007
Las Vegas, Nevada, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4802-7
PROCEEDINGS PAPER
A Dummy for Reproducing the Human Whole Body Vibration
Giampiero Mastinu,
Giampiero Mastinu
Politecnico di Milano, Milano, Italy
Search for other works by this author on:
Massimiliano Gobbi,
Massimiliano Gobbi
Politecnico di Milano, Milano, Italy
Search for other works by this author on:
Mario Pennati
Mario Pennati
Politecnico di Milano, Milano, Italy
Search for other works by this author on:
Giampiero Mastinu
Politecnico di Milano, Milano, Italy
Massimiliano Gobbi
Politecnico di Milano, Milano, Italy
Mario Pennati
Politecnico di Milano, Milano, Italy
Paper No:
DETC2007-35250, pp. 689-700; 12 pages
Published Online:
May 20, 2009
Citation
Mastinu, G, Gobbi, M, & Pennati, M. "A Dummy for Reproducing the Human Whole Body Vibration." Proceedings of the ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Las Vegas, Nevada, USA. September 4–7, 2007. pp. 689-700. ASME. https://doi.org/10.1115/DETC2007-35250
Download citation file:
9
Views
Related Proceedings Papers
Related Articles
Racing from the Great White North
Mechanical Engineering (December,1998)
Application of Practical Observer to Semi-Active Suspensions
J. Dyn. Sys., Meas., Control (June,2000)
Combined Braking and Cornering Limits as Related to Automobile Tire Marks
J. Dyn. Sys., Meas., Control (September,1999)
Related Chapters
Why Do We Avoid Conflict?
Conflict Resolution: Concepts and Practice (The Technical Manager's Survival Guides)
Part 2, Section II—Materials and Specifications
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 1, Third Edition
Introduction
Managing Risks in Design & Construction Projects