An improved quasi-zero stiffness vibration isolation system utilizing dry friction damping

A Donmez, E Cigeroglu, GO Ozgen - Nonlinear Dynamics, 2020 - Springer
Quasi-zero stiffness (QZS) isolators, a nonlinear vibration isolation technique, enhance the
isolation performance, by lowering the natural frequencies of an isolation system while …

Investigation of weight reduction of automotive body structures with the use of sandwich materials

D Hara, GO Özgen - Transportation research procedia, 2016 - Elsevier
The use of sandwich materials in automobile body panels is investigated in this study. In the
first part, floor, luggage, firewall and rear wheel panels of a car body-in-white are replaced …

Reliability assessment of solid-propellant rocket motors under storage and transportation loads

O Yılmaz, B Kuran, GO Özgen - Journal of spacecraft and rockets, 2017 - arc.aiaa.org
A methodology for the assessment of the service life of solid-propellant rocket motors under
random storage and transportation loads is presented. In storage conditions, the propellant …

Direct identification and expansion of damping matrix for experimental–analytical hybrid modeling

GO Ozgen, JH Kim - Journal of sound and vibration, 2007 - Elsevier
The theory of direct experimental identification of damping matrix based on the dynamic
stiffness matrix (DSM) method is further developed in this work. Based on the relationship …

Short-term effects of irbesartan treatment on microalbuminuria in patients with normotensive type 2 diabetes.

…, MM Karadeniz, MA Erdogan, GA Ozgen… - Saudi medical …, 2008 - europepmc.org
Objective To observe the short-term effects of irbesartan treatment on microalbuminuria in
patients with normotensive type 2 diabetes. Methods A total of 40 normotensive type 2 …

Design and development of a complex shear modulus measurement setup for viscoelastic materials

GO Ozgen - SAE transactions, 2005 - JSTOR
Details of the design and development study of a complex shear modulus measurement setup
for viscoelastic materials have been presented in this paper. The new setup is specifically …

Design of a tuned vibration absorber for a slender hollow cylindrical structure

T Aksoy, GO Özgen, B Acar - Mechanics Based Design of …, 2020 - Taylor & Francis
In this paper, details of the design work for a tuned vibration absorber to be used on a hollow
cylindrical structure is presented. The vibration problem is of resonant type and the tuned …

Dynamic stiffness-based test systems for viscoelastic material characterization: Design considerations

GO Ozgen, F Erol, AC Batihan - Topics in Modal Analysis I, Volume 5 …, 2012 - Springer
In this paper, several important design issues for viscoelastic material characterization test
systems which utilize dynamic stiffness measurements are discussed. These discussions are …

Error analysis and feasibility study of dynamic stiffness matrix-based damping matrix identification

GO Ozgen, JH Kim - Journal of sound and vibration, 2009 - Elsevier
Developing a method to formulate a damping matrix that represents the actual spatial
distribution and mechanism of damping of the dynamic system has been an elusive goal. The …

Investigation of the effect of structural damping on wind turbine wind-induced fatigue loads

C Kocan, GO Özgen - Mechanics Based Design of Structures and …, 2024 - Taylor & Francis
This paper presents a quantitative investigation of the effect of structural damping ratios of the
tower and blade vibration modes of wind turbines on wind-induced fatigue loads at critical …