Ercan M. Dede

RESEARCH INTERESTS

Analysis, Design, & Optimization of Structures with Integral Compliant Mechanisms for Mid-Frequency Response

The vibration of lightweight structures in the 1-10 kHz middle frequency region generates sound, which has a direct effect on human performance and perception of quality. Spring-mass absorbers, visco-elastic coatings, and active control solutions are effective across these frequencies. Nonetheless, these solutions often lead to increased system complexity or weight since they are typically added once a vibro-acoustic problem has been identified. Accordingly, this research is concerned with the development of a unique multi-scale analysis and design paradigm that utilizes small-scale compliant mechanisms within large-scale structures. This work is a synthesis of several established research fields including structural dynamics, compliant mechanism design, finite element computational analysis, and structural optimization via a genetic algorithm. Applications of this research include the design of lightweight, multi-functional structures for automotive, naval, or aerospace vehicles.

JOURNAL PUBLICATIONS

1. Dede E.M. and Hulbert G.M., Topology optimization of structures with integral compliant mechanisms for mid-frequency response, Structural and Multidisciplinary Optimization (Forthcoming - accepted 2008).
2. Dede E.M. and Hulbert G.M., Computational analysis and design of lattice structures with integral compliant mechanisms, Finite Elements in Analysis and Design (In press 2008), DOI: 10.1016/j.finel.2008.06.003.
3. Dede E.M. and Hulbert G.M., Mid-frequency response of structures with integral compliant mechanisms: verification and validation, Journal of Sound and Vibration 313(3-5), pp. 493-509, 2008, DOI: 10.1016/j.jsv.2007.12.021.
4. Dede E.M. and Hulbert G.M., Analysis, design, and optimization of structures with integral compliant mechanisms for mid-frequency response, International Journal for Numerical Methods in Engineering 73(4), pp. 470-492, 2008, DOI: 10.1002/nme.2084.

DISSERTATION

• Dede E.M., Analysis, design, and optimization of structures with integral compliant mechanisms for mid-frequency response, Ph.D. Dissertation, University of Michigan: Ann Arbor, 2007.