## Abstract The origin of novel traits is what draws many to evolutionary biology, yet our understanding of the mechanisms that underlie the genesis of novelty remains limited. Here I review definitions of novelty including its relationship to homology. I then discuss how ontogenetic perspectives m
ON THE ORIGINS AND DEVELOPMENT OF MOBILITY AND IMPEDANCE METHODS IN STRUCTURAL DYNAMICS
β Scribed by P. GARDONIO; M.J. BRENNAN
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 432 KB
- Volume
- 249
- Category
- Article
- ISSN
- 0022-460X
No coin nor oath required. For personal study only.
β¦ Synopsis
An account of the conception and early development of mobility and impedance methods in structural dynamics is presented in this paper. As often happens in science, the concepts and ideas developed in one branch of science have inspired new approaches and theories in another branch, and indeed this was the case for mechanical mobility and impedance, which has its origin in the "eld of electricity. The conception and formulation of both direct and inverse electromechanical analogies are described in this paper together with the formulation of ad hoc impedance and mobility methods that were developed for mechanical systems. Finally the impedance, mobility and transmission matrix methods that evolved for #exible, distributed mechanical systems are discussed. This paper has been written with reference to a large number of published papers many of which have been listed in the reference section.
2002 Academic Press
π SIMILAR VOLUMES
Several equations are proposed which relate the time-average energy of a forced vibrating linear structure to the structure input impedance and mobility. When the structure is driven at one point, the equations allow one to obtain the kinetic and potential energy, loss factor and other energy charac