Experimental Procedure to assess Damages of Welded Beams
Journal Title: Analele Universitatii "Eftimie Murgu" Resita. Fascicula de Inginerie - Year 2017, Vol 24, Issue 1
Abstract
This paper presents an experimental procedure to assess damages of welded beams, the weld being transversal to the longitudinal beam axis. It consists of comparing the natural frequencies in intact and damaged state, calculating the frequency shift due to damage and weigh the shifts against patterns derived a priori.
Authors and Affiliations
Codrin-Nistor Nitescu, Zoltan-Iosif Korka, Gilbert Rainer Gillich
Optimisation of the Start-up and Operation Regimes of Cooling Water Pumps of a High-Power Hydro Generator
It is necessary to make sure that the operation of cooling installations of hydro generators could be made in conditions of enhanced security so that the probability of defects occurrence during their exploitation be pra...
Notes on LED Installations in Street Illumination
The paper presents a study made on choosing LED street lighting installations, such that the quality requirements for exterior artificial lighting are fulfilled. We analyze two types of LED street lighting installations...
Treatment Solutions for Rainwater Contaminated with Various Pollutants
This study presents aspects on the environmental pollution with contaminants difficult to manage from sources such as car parking, roads and roofs in crowded areas that have deficient wastewater harvesting urban networks...
Optimal Control of an Electrical Drive System with Variable Torque
The optimal control from the energetic point of view of the transient state of electrical drive systems is presented. A step variation of the load torque in the optimization interval is considered. The performance criter...
Key Performance Indicator of Building Maintenance and Its Effect on the Building Life Cycle
Building maintenance is considered as one of the national agenda. Multitude barriers received by the services providers have undergone various difficulties in satisfying public interest have been progressively resolved a...