The invention discloses a method monitoring fatigue service life of a crane beam; the method comprises the following steps: recording position information of the crane beam; setting position information of fatigue checking computation points for the crane beam; setting up a corresponding stress amplitude function for each the fatigue checking computation point of the crane beam, wherein the stress amplitude function uses hoisting weight and walking position as input variables; using the corresponding stress amplitude function to calculate a stress amplitude formed on the fatigue checking computation point by a hoisting object in each walking process of the crane beam; converting the stress amplitude of the fatigue checking computation point of the crane beam into a stress amplitude cycle index indicating fatigue life. The method can monitor the fatigue service life of the crane beam without needing a stress induction sheet, so monitoring cost and construction difficulty cannot be obviously improved by increasing number of the crane beams and fatigue checking computation points.
Method monitoring fatigue service life of crane beam
2015-11-18
Patent
Elektronische Ressource
Englisch
METHOD OF EVALUATING AND MONITORING THE SERVICE LIFE OF GANTRY CRANE
Europäisches Patentamt | 2016
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