This paper reports a reduced-order modeling framework of bladed disks on rotating shaft to simulate the vibration signature faults like cracks in different components aiming towards simulated data-driven machine learning. We have employed lumped and one-dimensional analytical models subcomponents for better insight into complex dynamic response. The seeks address some challenges encountered ana...

The paper presents a comparative analysis on the steady-state behavior of two counter-rotating wind turbines with same components, where generator can operate as (with both mobile rotor and stator— Case ) vs. conventional fixed b electric machine. These energy conversion systems (WECSs) also have coaxial rotors one-degree-of-freedom (1-DOF) planetary speed increaser inputs one or outputs for co...

This paper presents a mobile Lidar system for efficiently and accurately capturing the 3D shape of the Bas-reliefs in Angkor Wat. The sensor system consists of two main components: 1) a panoramic camera and 2) a 2D 360-degree laser line scanner, which moves slowly on the rails parallel to the reliefs. In this paper, we first propose a new but simple method to accurately calibrate the panoramic ...

cyst wall, the type of keratinization, the presence of vellus or terminal hair shafts, and the relationship with adjacent skin appendages. 6 The most common cutaneous cysts are those originating in the pilosebaceous unit, with infundibular or epidermoid cysts and trichilemmal cysts being the most common. Hair shafts inside cutaneous cystic lesions are a rare finding, and terminal hair shafts in...

Heat exchangers are widely used in power engineering and industrial applications, many techniques such as coiled tube, surface tension devices, rough surfaces, extended surfaces have been investigated to enhancethermal performance and to minimize the cost and size of the heat exchanger equipment. One of the most important techniques is tube insert. In general,tube inserts can be classified into...

generally, fatigue failure in an element happens at the notch on a surface where the stress level rises because of the stress concentration effect. the present paper investigates the effect of a notch on the fatigue life of the hsla100 (­high strength low alloy) steel which is widely applicable in the marine industry. tensile test was conducted on specimens and mechanical properties were obtain...