The piezoelectric active sensing method has been proven to be an effective, nondestructive
approach for bolt looseness monitoring. The conventional damage index relies on the …

The development of a bridge damage detection method relies on comprehensive dynamic
responses pertaining to damage. The numerical model of a bridge can conveniently …

The work is aimed at identifying the structure of the operation signals of the complex
dynamic system elements. The structure reflects the space-time relationship of its …

In this paper, the frequency broadband effect in vibration energy harvesting was studied
numerically using a quasi-zero stiffness resonator with two potential wells and piezoelectric …

The vibration signals are usually assumed to be stationary for the sake of simplicity, but
actually many signals are not definitely stationary, and ignoring the non-stationary …

Dynamic analysis of a large, full-scale construction requires proper excitation in order to
induce vibrations that can be measured and further processed. The amount of delivered …

Technical diagnostics of the overhead power line supporting structures is very important
from the point of view of reliability and the national energy security. The paper presents a …

As a frequent natural disaster, red tide has attracted more and more attentions. In fact, red
tide results from the joint actions of multiple complex marine environmental factors …