A new model for calculating impact force and energy dissipation based on the CR-factor and impact velocity

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Naderpour, H (Author) Other; Rui Carneiro de Barros (Author) FEUP; Khatami, SM (Author) Other

Journal

Title: Scientia Iranica

Vol. 22

Pages: 59-68

ISSN: 1026-3098

Publisher: Sharif University of Technology

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 7 Citations

Other information

Authenticus ID: P-00A-ANM

Abstract (EN): Many researchers have studied building pounding to calculate the dissipated energy and impact force between two buildings during an earthquake. In this paper, a new equation is proposed to measure the impact force and energy dissipation. The results based on the proposed equation are compared with the results of available equations. Using a suggested link element, a new formula is presented to calculate the impact force and energy dissipation. In order to evaluate the results of dissipated energy, a new relation between CR and impact velocity is also suggested. Since there is a need to have a reference curve to select impact velocity, based on the coefficient of restitution, several impact velocities and CRs were evaluated. By using the latter curve, results could be evaluated. A new equation of motion is assumed to select the best impact velocity and coefficient of restitution. Finally, based on the coefficient of restitution and using the steady-state response of a single degree of freedom system, due to external force, a new equation of motion is suggested to calculate the impact damping ratio.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10