In recent decades, the shock pulse method has been developed to detect faults in the early stage of rolling element bearings degradation.

In simple terms, the Shock Pulse Method detects development of a mechanical shock wave caused by technique. it is possible to measure the shock pulses -.

processing method in the early 1960’s. Firstly SRS was used by U.S. Department Of Defense. Now this signal processing method is standardized by ISO 18431-4 Mechanical The shock response spectrum assumes that the mechanical shock pulse is applied as a common base input to a group of independent single-degree-of-freedom systems, see figure

conditions by shock pulse method Shock Pulse Meter 6−2000 tester with accelerometer The 6−2000 is switched on by pressing any of the five function keys. Power down function is automatic and happens approx 30 seconds after a function key is pressed. If the instruments fails to power down within one

the shock pulse on the system through the use of a single-degree-of-freedom idealization, assuming that the fundamental mode parallel to the direction of the pulse is the sole contributor to maximum deformation and corresponding stresses. This method utilizes a combination of Rigid Formats 3 and 1 in place of Rigid Format 9 or 12.

Shock pulse amplitude is due to three basic factors: • Rolling velocity (bearing size and rpm) • Oil film thickness (separation between the metal surfaces in the rolling interface). The oil film depends on lubricant supply and viscosity as well as alignment and pre-load.

Shock Pulse goes Spectrum Lou Morando, managing director of the SPM office in the U.S., explains the back-ground. ”I have to mention some ele-mentary physics to explain what we are doing. The shock pulse method was the start of condition monitoring and condition based maintenance, targeting the machine part that causes most breakdowns, the

method 516.8 516.8-i method 516.8 shock contents paragraph page 1. terminal peak sawtooth shock pulse configuration and its tolerance limits.. 13 figure 516.8-4. trapezoidal shock pulse configuration and tolerance limits.. 13 figure 516.8-5. half-sine shock pulse

Compared with vibration-based measurements, the acceleration-sensor-based shock pulse method (SPM) has been proven to be more effective, 

The shock pulse method is based on the knowledge that a shock, i.e. a mechanical impact, causes particles to accelerate at the point of impact. In turn, the accelerated particles give rise to a pressure wave whose propagation during the initial stages is only defined by the impact speed.

bearings is well documented. the work reports about the investigation of ball bearing using shock pulse method by using two different instruments (Tester