VIBRATION MONITORING

VIBRATION MONITORING

Sea and river vessels navigate all over the world. In order for this to happen without any delays, it is important to maintain responsible equipment on board ships. In practice, maintenance is carried out in accordance with the period of the vessel in operation or the operating hours of each mechanism, and this is called preventive or scheduled maintenance.
VIBRATION MONITORING

Service of Digital Health Vibro-Monitoring Set

Marine and river ships are in navigation around the world every second. To do that without delays the maintenance of critical machinery on board ships is important. Practically the maintenance is based on calendar or running hours and it is called preventive or planned maintenance.

Predictive maintenance is the most efficient method these days.

The machinery is monitored with modern techniques such as vibration. The condition is trended over time and maintenance is performed only when required.

Our laboratory on the market proposes comfortable and solid solution – VIBRATION MEASUREMENTS BY SHIP CREW AND REMOTE ANALYSIS BY OUR CERTIFIED LABORATORY.

We propose safety improvement through vibration monitoring. Reliable service for safe navigation in simple way!

VIBRATION MONITORING OF ROTARY EQUIPMENT
VIBRATION MONITORING OF ROTARY EQUIPMENT
VIBRATION MONITORING OF ROTARY EQUIPMENT
We offer monitoring of the condition of vertical and horizontal rotary type equipment: electric motors, turbines, centrifugal pumps, etc.
VIBRATION MONITORING OF EQUIPMENT WITH RECIPROCATING PARTS
VIBRATION MONITORING OF EQUIPMENT WITH RECIPROCATING PARTS
VIBRATION MONITORING OF EQUIPMENT WITH RECIPROCATING PARTS
We offer monitoring of the condition of equipment with reciprocating parts: internal combustion engines, gas piston engines, compressor piston units, piston pumps, etc.

Service with Digital Health Vibro-Monitoring Set

  • Simple to gather vibration data
  • Simple to transfer data for analysis
  • Simple to have it on regular basis for condition trending
  • Simple to have a result for superintendent/manager and ship’s crew

When there are a group of ships in monitoring, additional module is attached «Business analytics and fleet KPIs» for superintendents and fleet managers.

In-depth analytics of fleet is your choice!

Service of Digital Health Vibro-Monitoring Set offers hardware, software and services combined in one contract. One annual subscription fee with no need for the vessel to purchase a vibration meter. 15:1 is the measured Return-on-investment level from the first year.



Machinery condition report is based on detailed narrowband analysis of recorded time waveforms and processed spectrums of velocity, acceleration and demodulated acceleration, and supervised Machine Learning algorithm.

  • High Frequency up to 10,000 Hz Time waveform analysis
  • Low Frequency up to 1000 Hz Spectrum analysis
  • High Frequency up to 10,000 Hz Spectrum analysis
  • Demodulation analysis (Vibration demodulation or envelope analysis is useful to detect bearing early damage detection. Demodulation is a signal process to identify high vibration frequencies.)
  • Crest factor (It is a parameter of a waveform, showing the ratio of peak values to the effective value. In other words, crest factor indicates how extreme the peaks are in a waveform.)
  • Spectral kurtosis (It is a statistical parameter indicating how the impulsiveness of a signal varies with frequency. Since faults in rolling element bearings give rise to a series of short impulse responses as the rolling elements strike faults on the races, the SK is potentially useful for determining the frequency bands dominated by the bearing fault signals, usually containing resonance frequencies excited by the faults.)
  • Pulsation index for reciprocating compressors (Pressure pulsation are generated in reciprocating compressors, not just at run speed but at multiples of run speed up to as high as 250 Hz. Pulsation generated at low compression ratio operating conditions, which are typical of pipeline installations, tend to be particularly severe. High pulsation at the compressor valves can adversely affect compressor performance and valve life.)
  • Autocorrelation curve analysis (Autocorrelation, also known as serial correlation, is a statistical concept that measures the degree of similarity between a given time series and a lagged version of itself over successive time intervals. It describes the relationship between a variable's current value and its past values in a time series. Autocorrelation is used to understand the underlying patterns or structure in a time series, which can reveal information about trends, seasonality, and cycles.)

Fault indicators and limiting values are continuously monitored by the machine learning algorithm and the algorithm is updated automatically.

A wide range of machinery problems are detected at an early stage:

  • bearing wear or defects;
  • gear defects;
  • lack of lubrication;
  • pump impeller wear and cavitation defects;
  • misalignment;
  • unbalance;
  • mounting problems;
  • resonance vibration.