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MESYS Calculation Software

As in the normal parameter variation, several input parameters can be added to the table “Generate list” and ranges (Start/End values) can be defined for them. No calculations steps are required for the ranges. However, a limitation on the number of statistical calculations can be set under the tab-page ‘Settings’. A first insight is already possible with a smaller number of calculations, but for nice-looking curves several thousand calculations are needed.

Different types of probability distributions can be chosen from a drop-down list which is shown when double-clicking on a cell under the ‘Distribution’ column for any of the parameters:

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Uniform: The probability is equally distributed for a set of values between the maximum and minimum value of the parameter.

Normal distribution within range: The probability is calculated for a set of values ranging from the minimum to maximum by using a normal distribution.

Normal distribution without limit: The probability is calculated for a set of values theoretically in the range of all_img119 by using a normal distribution.

Minimum, maximum: The probability is equally distributed between the maximum and minimum values of the parameter.

Minimum, mean value, maximum: The probability is equally distributed between the maximum, mean and minimum values of the parameter.

Additionally, a factor can be set for the deviation and an offset value between -1 and 1 can be used to shift horizontally the ‘bell curve’ in either direction.

The parameter ‘Bearings tolerance’ allows to vary the effective bearing clearance for each bearing in the system independently. For the given range 0 to 1 the bearing clearance is set to a random value between minimum and maximum effective clearance defined for each bearing. In parameter list or graphics always 0 is shown for the parameter. Please look at the results for effective bearing clearance instead.