Informējam, ka Sistēma pielāgota darbam ar interneta pārlūkprogrammu Internet Explorer (8. un jaunākām versijām) un Mozilla Firefox (3.6 un jaunākām versijām).
Izmantojot citu interneta pārlūkprogrammu, brīdinām, ka Sistēmas funkcionalitāte var tikt traucēta.
<p><span lang="EN-GB">This part of IEC 61400 specifies a method to calculate the design reliability of wind turbines gearboxes covered by IEC 61400‑4, based upon failure modes where standardized calculation methods are publicly available. </span></p>
<p><span lang="EN-GB">Currently, not all failure mechanisms that occur in the field have accepted theoretical models. Therefore, the method only provides a quantitative assessment method of the failure mechanisms that can be described with accepted mathematical models for the complete gearbox, stages (functional units), field replaceable units, and individual components. </span></p>
<p><span lang="EN-GB">For the calculable failure mechanisms, it is possible to compare the reliability between different gearbox designs within the limitations of the theoretical models. The use of field-based statistical parameters can improve the accuracy of the calculated reliability. </span></p>
<p><span lang="EN-GB">The calculated design reliability can provide information for the lifecycle management strategy. However, this document does not provide trade-off decisions between higher design reliability and maintenance strategies (e.g. preventive or predictive maintenance). This document does not consider repairable system analysis.</span></p>
<p><span lang="EN-GB">Due to the lack of accepted theoretical models for some failure modes, the model can currently not predict the apparent failure probability in the field. </span></p>
<p><span lang="EN-GB">Neither this document nor IEC 61400-4 specify a minimum value of design reliability.</span></p>
Reģistrācijas numurs (WIID)
87650
Darbības sfēra
<p><span lang="EN-GB">This part of IEC 61400 specifies a method to calculate the design reliability of wind turbines gearboxes covered by IEC 61400‑4, based upon failure modes where standardized calculation methods are publicly available. </span></p>
<p><span lang="EN-GB">Currently, not all failure mechanisms that occur in the field have accepted theoretical models. Therefore, the method only provides a quantitative assessment method of the failure mechanisms that can be described with accepted mathematical models for the complete gearbox, stages (functional units), field replaceable units, and individual components. </span></p>
<p><span lang="EN-GB">For the calculable failure mechanisms, it is possible to compare the reliability between different gearbox designs within the limitations of the theoretical models. The use of field-based statistical parameters can improve the accuracy of the calculated reliability. </span></p>
<p><span lang="EN-GB">The calculated design reliability can provide information for the lifecycle management strategy. However, this document does not provide trade-off decisions between higher design reliability and maintenance strategies (e.g. preventive or predictive maintenance). This document does not consider repairable system analysis.</span></p>
<p><span lang="EN-GB">Due to the lack of accepted theoretical models for some failure modes, the model can currently not predict the apparent failure probability in the field. </span></p>
<p><span lang="EN-GB">Neither this document nor IEC 61400-4 specify a minimum value of design reliability.</span></p>
