This paper reports on research to evaluate the application of artiicial neural networks to pump condition monitoring. Based on historical velocity vibration measurements, artiicial neural networks were developed to assess pump condition. Pumps, in general, behave like most rotating equipment and evolve or deteriorate as a function of a single variable, namely time. Such evolution forms the basi...

Whole-body vibration (WBV) involves standing on a machine with a flat plate which tilts slightly around an axle and sends vibrations through the entire body. The aim for the person standing on the machine is to keep the head and body steady and upright. In this way the person exercises all the muscles that keep the body in this position. The amount of time spent on the machine varies but even s...

1. Mohd Ghazali MH, Rahiman W. Vibration Analysis for Machine Monitoring and Diagnosis: A Systematic review. Shock Vibration. 2021; 2021:9469318. https://doi.org/10.1155/2021/9.... CrossRef Google Scholar

A new cogeneration installation was in the process of being commissioned when severe subsynchronous vibration was detected on the generator during no load tests. Subsequently, two rotordynamics problems were discovered. These problems prohibited the steam turbine generator set from reaching full speed. Additional vibration problems were anticipated once the generator was loaded and the steam fl...

This paper inspects the misaligned of shaft by using diagnostic medium such as current and vibration. Misalignments in machines can cause decrease in efficiency and in the long-run it may cause failure because of unnecessary vibration, stress on motor, bearings and short-circuiting in stator and rotor windings. In this study, authors investigate the onset of instability on a shaft mounted on jo...

This paper presents the three dimensional (3D) finite element analysis to predict the workpiece displacement amplitude and tool wear in face turning of AISI 1040 steel under dry machining condition. 3D vibration induced turning models have been developed and validated by comparing with experimental results so as to identify the correlation. Extensive experimentation and investigators carried ou...

A DSP-based measurement system dedicated to the vibration analysis on rotating machines was designed and realized. Vibration signals are on-line acquired and processed to obtain a continuos monitoring of the machine status. In case of fault, the system is capable of isolating the fault with a high reliability. The paper describes in detail the approach followed to built up fault and unfault mod...

This paper proposes a method to vibration analysis in order to on-line monitoring of milling process quality. Adapting envelope analysis to characterize the milling tool materials is an important contribution to the qualitative and quantitative characterization of milling capacity and a step by modeling the threedimensional cutting process. An experimental protocol was designed and developed fo...

OBJECTIVES To evaluate the effect of different ultrasonic tip designs on intraradicular post removal. MATERIALS AND METHODS The crowns of forty human canine teeth were removed, and after biomechanical preparation and filling, the roots were embedded in acrylic resin blocks. The post spaces were made, and root canal molding was performed with self-cured acrylic resin. After casting (Cu-Al), th...