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Machine Vibration FFT Analysis Blog Machine Vibration FFT Analysis & Fault Diagnosis 1. Input Vibration Data (mm/s & g) Equipment Direction Velocity Acceleration Spike Energy 2. Limit Adjustment Velocity Alarm Velocity Danger Acceleration Alarm Acceleration Danger 3. Direction & Machine Selection Motor NDE Motor DE Pump DE Pump NDE Horizontal Vertical Axial Run FFT & Diagnosis 4. FFT Echo (Fault Frequencies) 5. Trend Plots 6. Overall Diagnosis & Recommendation Download Report CSV

  Chapter 2: Heat flow in welding Temperature Distribution in Welding Temperature distribution in welding depends upon the nature of the welding process used, type of the heat source employed, energy input per unit time, configuration of the joint (linear or circular), type of joint (butt, fillet, et.c.),physical properties of the metal being welded, and the nature of the surrounding medium i.e. ordinary atmospheric conditions or underwater. Although it is beyond the scope of this book to analyse all these aspects of heat flow in detail but brief descriptions of the following cases are (A) Arc Welding (i) Linear butt welds, (ii) Circular butt welds, (iii) Fillet welds. B) Resistance .Welding (i) Upset butt welding, (ii) Spot welding. (C) Electroslag Welding, (D) Underwater Welding. Temperature Distribution in Arc Welding Nearly 90% of welding in world is carried out by one or the other arc welding process, therefore it is imperative to discuss the problem of temperature distributio...