(20 min.) Case Study: Diagnosing 1X Vibration – Not Easy

Rao Vamsidhar, Assistant General Manger , Vizag Steel


Finding earlier faults in critical machinery by using vibration analysis saves down time and further damage to the machine. Diagnosing 1x vibration seems to be very easy on most of the general rotating machinery. But when it comes to critical machinery like steam turbines, it requires tremendous data and accurate diagnosis for the root cause of 1x vibration. The following unsolved case study discusses intermittent and unpredictable 1x vibration in a 120 MW steam turbine in an Integrated Steel Plant.

1. Attendees will explore correlating process and vibration data for better diagnosis.
2. Attendees can know how decision making can be done for corrective action after fault finding.
3. Better usage of vibration analysis for increasing the availability.


Rao Vamsidhar is a Maintenance Manager having a rich experience of 20 years in the rotating machinery field. He has begun his career as a Management Trainee in Power Engineering Maintenance department in Visakhapatnam Steel Plant, India in 1998 and successfully progressed and elevated to the position of Assistant General Manager in 2016. Throughout his career he is involved in the maintenance, condition monitoring and vibration analysis of high-speed rotating machinery from turbines to balance of plant machinery.

He completed his Bachelors degree in Mechanical Engineering from Andhra University and Master of Business Administration (Finance) from ICFAI UNIVERSITY, INDIA. He is a certified Category IV vibration analyst from Mobius Institute and Certified Reliability Leader (CRL) from The Association of Asset Management Professionals (AMP) and a member of Society for Maintenance & Reliability Professionals (SMRP). He attended IMVAC-2016 INAUGURAL CONFERENCE held in Orlando, Florida and presented case studies in IMVAC MIDDLE EAST 2017 AND IMVAC EUROPE 2017

He has been awarded Jawaharlal Nehru Award, highest recognition for best performance in Visakhapatnam Steel Plant in the year 2015. He is the 1st Indian to be certified as Cat IV vibration analyst from Mobius Institute in the year 2015.

Rao Vamsidhar lives in Viskhapatnam, Andhra Pradesh, India