This paper introduces a new online method for performing control-based continuation (CBC), speeding up the model-less identification of stable and unstable periodic orbits nonlinear mechanical systems. The main building block algorithm is adaptive filtering which can ensure non-invasiveness controller without need offline corrective iterations. Two different strategies, termed stepped swept CBC...

In this article, an implementation of the so-called "novelty detection" method to monitor damage in structures is proposed. Whereas conventional damage identiication procedures have the limitation of requiring a suuciently precise mathematical model of the structure , the novelty detection approach requires no "a priori" model, making the method more applicable to systems of arbitrary complexit...

Efficient fracturing is the key issue for exploitation of geothermal energy in a Hot Dry Rock reservoir. By using laser irradiation cracking method, this study investigates changes uniaxial compressive strength, ultrasonic characteristics and crack distributions granite specimens by applying beam under various conditions, including different powers, diameters moving speeds beam. The results ind...

Cracked and un-cracked Brazilian disc specimens subjected to diametral compression were used for conducting fracture toughness and tensile strength experiments on a polymer concrete (PC) material. The value of mode I fracture toughness (KIc) was determined from the center- cracked Brazilian disc and the indirect tensile strength (σt) was obtained from the un-cracked Brazilian disc specimen. The...

The design of upholstered sofa frames to meet the General Service Administration (GSA) performance test regimen requires that analytical method and design loads be available. A simplified analysis method using beam models to analyze and calculate bending moments of critical structural members in a three-dimensional sofa frame was explored. The GSA performance test regimen load schedules were ap...