1. College of Civil Engineering and Architecture Zhejiang University Hangzhou China
2. Department of Architecture, Faculty of Engineering The University of Tokyo Tokyo Japan
3. Univ Lyon, Ecole Nationale d'Ingénieurs de Saint‐Etienne (ENISE), Laboratoire de Tribologie et de Dynamique des Systèmes (LTDS) Saint‐Etienne Cedex 2 France