Translation of "Belastungszyklus" in English

The coating is exposed to a quick-weathering test, with the following load cycle:

In particular, the relevant load times of individual load cycles can be used as analysis data.

A further analysis parameter can be the impulse magnitudes of the load parameter-time-curve measured in each load cycle.

For this purpose, first the maximum crack propagation along the crack front is determined for the load cycle.

There is cracking test on the work piece after the stress cycle.

Symmetric cycle of loading gives the smallest value of the fatigue limit.

For this purpose, the pacemaker is operated temporarily in each case in the demand mode, preferably upon completion of the stress cycle when the patient's heart frequency is decreasing, so as to follow the patient's decreasing heart frequency so closely that stimulation signals are supplied positively at regular intervals in a frequency pattern during the decreasing spontaneous heart activity so as to temporarily stimulate the patient's heart with a previously encountered higher (spontaneous) frequency.

For automatic adaptation corresponding to a "self-teaching process" which is also possible without running through a stress cycle under supervision of a physician on the basis of the changes in stress occurring during normal activity, the control range for stimulated frequencies would be adapted to that control range which would be covered if spontaneous actions were to occur.

The powder paint coating is subjected to a quick-weathering test as indicated in Example 1, but with the following load cycle:

A single load value is derived from the set of raw data processed during the load cycle by the microprocessor.

This load cycle is repeated several times, there being expediently provided, between the individual cycles I and II etc., short load intervals during which, on the one hand, the brake generating the load is reset to its new load value, and on the other hand, the drive, having previously been subjected to load, is able to cool down.

At issue is the relative compressibility, which represents the average thickness reduction with regard to the actual thickness, indicated in %, in the loading cycle defined by the DIN norm 16 621.

In other words, the life expectancy calculations and therefore also the necessary selection of a particular screw drive are based on theoretical assumptions about the load cycle and types of operation.

Small negative elongations are therefore desirable, in order to achieve elongations of a similar magnitude to the polarization elongation in each further unipolar loading cycle, i.e. polarization process.

In this case, a loading cycle is a working cycle, for example a combustion cycle in an internal combustion engine or a casting operation in an injection-moulding machine, which occurs repeatedly.

In order to be able to determine the residual life of the sensor unit 10, the loading of the sensor unit 10 in a loading cycle B k is determined in the assessment unit 6 .

The method according to claim 1, wherein each loading cycle (B) is weighted individually and the residual life (R) is determined continuously.

The method according to claim 1, wherein each loading cycle (B) is weighted individually and the residual life (R) is determined after a certain number of loading cycles (B) or a specific time.

A series of characteristic variables can be derived from the time profile which can be used as a measure of the loading of the sensor unit 10 in a loading cycle B k .

A loading cycle B k is characterized by recurring similar loads, for example a combustion cycle, which can consequently be identified from an analysis of the time profile of the measured variable.

This characteristic variable is used to determine a damage factor S k for the loading cycle B k using the damage model 9 .

In the above-described method, each loading cycle B k is therefore evaluated individually and immediately and supplied to the residual life calculation step.

In the period between the points in time t 1 and t 7, the steam turbine thus passes through a complete stress cycle with heating up and cooling down of the selected part.

The approximate determination of the parameter characteristic for the current fatigue state of the part is preferably undertaken on the basis of determining an intermediate value based on the load values determined for the current load cycle executed, with the intermediate value being able to be suitably transformed on the basis of stored databases into the actual parameter characteristic for the fatigue state.