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AssigneeOerlikon Leybold Vacuum GmbH
InventorsRoland Blumenthal, Michael Froitzheim, Thomas Palten, Dieter Bohry, Manfred Kiefer
Estimating the term…
A method for determining the fatigue of the pump rotor of a gas turbopump comprises the following method steps: continuous determination of the rotational speed (n) of the pump rotor, determination of the local rotational speed maxima and minima of a temporal rotational speed profile under consideration, association of the rotational speed maxima and minima with each other to form pairs, determination of a pair fatigue value (L) for each of the rotational speed pairs, and accumulation of all pair fatigue values (L) to form a total fatigue value (Ltot). In this manner it is possible to determine the cyclic stress for the pump rotor of a vacuum pump and to include it in the calculation of a total fatigue value.
A method for determining the fatigue of the pump rotor of a gas turbopump, comprising the following method steps:
An apparatus for determining fatigue of a pump rotor of a turbopump comprising one or more processors programmed to:
A method for determining the fatigue of the pump rotor of a gas turbopump comprising the following method steps:
Dependencies are inferred from the claim text.