down. Condition monitoring should always priate technique for the application makes the machine work, is directed start with a list of machine faults, and for 

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.

The terminal peak sawtooth is the default classical shock pulse to be used for this condition. Figure 516.7-10 from MIL-STD-810 shows its shape and tolerance limits. Table 516.7-IV contains the terminal peak sawtooth default test parameters for Procedure I -Functional Test. In limited cases a half sine shock impulse is specified.

This method is to detect mechanical shocks caused by faults in rolling bearings. The shock-pulse method has been introduced into industry and some of this 

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

The shock pulse method was the start of condition monitoring and condition based maintenance, targeting the machine part that causes most breakdowns, the bearings. The scientific task was to find a physical event that mirrored bearing con- dition, quantify it, and transform the mea- sured value into a condition reading.

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

The shock pulse method was the start of condition monitoring and condition based maintenance, targeting the machine part that causes most breakdowns, the bearings. The scientific task was to find a physical event that mirrored bearing con- dition, quantify it, and transform the mea- sured value into a condition reading.

Manual recording, free quantity LEO151 Shock pulse method dBm/dBc and LR/HR For over 30 years, the original Shock Pulse Method (SPM).

3. SHOCK PULSES. Two types of shock pulses, a half-sine shock pulse and a sawtooth shock pulse, are specified. The pulse shape and tolerances are shown on figures 213-1 and 213-2, respectively. For single degree of freedom systems, a sawtooth shock pulse can be assumed to hav e a damage potential at least as great as that of the

The Shock Pulse Method is the monitoring and analyzation of high freauency compression (shock) waves generated by a bearing while rotating. From this.