scholarly journals An Innovative Methodology for Wind Turbine Generator Rotor Blade Manufacturing Hazard Identification and Risk Assessment

Author(s):  
Aditya Tiwary ◽  
Saurabh Deshmukh

Hazard analysis uncovers and identifies hazards that exist in the workplace, generally focusing on a particular activity, project, or system. It develops a means to – communicate, track, quantify, allocate mitigation measures, verify effectiveness. The objective of this paper is to obtain hazards and risk analysis, the event sequences leading to hazards and the risk associated with hazardous events. Many techniques ranging from the simple qualitative methods to the advanced quantitative methods are available to help identify and analyze hazards. An innovative methodology is presented here to obtain the hazards and risk analysis in Wind Turbine Generator Rotor Blade Manufacturing unit for three different processes. The three different process on which Hazard Identification and Risk Assessment has been done are MPRP/Resin & Hardner mixing Process, MPRP/Kitting Process and Prefab/MG O & X Process.

Author(s):  
Aditya Tiwary ◽  
Saurabh Deshmukh

In industrial arena, if any industry to be successful, it has to be safe, reliable, and sustainable in its operations. The industry has to identify the hazards and assess the associated risks and to bring the risks to tolerable level. The objective of this paper is to obtain hazards and risk analysis, the event sequences leading to hazards and the risk associated with hazardous events. Many techniques ranging from the simple qualitative methods to the advanced quantitative methods are available to help identify and analyze hazards. Wind Turbine Generator Rotor Blade Manufacturing unit hazards and risk analysis has been done.


Author(s):  
Michael Kirschneck ◽  
Daniel J. Rixen ◽  
Henk Polinder ◽  
Ron A. J. van Ostayen

In large direct-drive off-shore wind turbine generators one challenge is to engineer the system to function securely with an air gap length of about a thousandth of the outer rotor diameter. Compared to the large diameter of the generator rotor, the rolling element bearings can only be constructed with a relatively limited size. This makes it challenging to design appropriate constructions able to transmit the large applied magnetic forces encountered in the air gap of direct drive wind turbine generators. Currently, this challenge is met by designing stiff heavy rotors that are able to withstand the forces in the air gap. Incorporating flexibility into the design of the rotor structure can lead to a lighter less expensive rotor. In order to be able to do this the magnetomechanical coupling in the air gap and its effect on the structural dynamics need to be taken into account when predicting the intended flexibility. This paper introduces an approach for a multiphysical modal analysis that makes it possible to predict the dynamics of the strongly coupled magnetomechanical system. The new method is validated using measurements of a simple lab setup. It is then applied to a single-bearing design direct-drive wind turbine generator rotor to calculate the changes of the structural dynamics caused by the electromagnetomechanical coupling.


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