The Study About Composite Material Erosion Wear Of Wind Turbine Blade

Fluid erosion phenomenon is very common in nature, and some of the fluiderosion will bring huge economic losses, so we should do some research on erosion,fluid erosion is mainly divided into three types, single flow, two-phase flow andmultiphase flow, most of the erosion phenomena in nature are caused by two phase ormultiphase flow, the experimental study is used in gas solid two phase flow scouringexperiment, then the simulation experiments in ANSYS, and got the appropriateconclusion.Experimental study of this article mainly combined our country and even theworld wind powers current situation, and the wind turbine blade material simulationexperiment was carried out in the Xin Jiang environment, to test the blade materialsanti-erosion corrosion in the sand under the conditions, and through the SEMphotographs the failure form of material had shown in such environment, finally, acorresponding protection measures had been made,just hope the research on this fieldin the future play a leadership role, at the end of the gas phase simulation experimentwas simulated using ANSYS software. The results are as follows:(1) The erosion wear experiment results show that:a) When the erosion velocity is12.8m/s, abrasive particle size for the0.104mm-0.212mm constant, with the increasing erosion angle from15°, erosionwear loss rate also increased, when the impact angle only15°, material loss rate is0.2949g/kg, when the impact angle up to a maximum value90°, weight loss ratereached1.2283g/kg, that is about4.2times compared with15°, and the wholeprocess between material loss and angle showed a similar linear relationship.b) With wind speed increase material erosion wear loss increases rapidly, whenthe wind speed is7.9m/s, material loss rate is only0.0829g/kg, and when the velocitywas increased to17.4m/s the weight loss rate reached2.7899k/kg, far beyond thespeed of7.9m/s at the rate of weight loss, therefore, scouring velocity is one of the main factors affecting mass loss rate.c) Erosion of C glass fiber composite rate decreased firstly and then increasedand finally in reducing with the increase in particle size, material loss maximumoccurs in the range of0.212mm-0.42mm, the maximum value was0.8507g/kg, andthe minimum value is between0.42mm-0.84mm, the minimum was0.6915g/kg, andthe whole process of material weight loss performance presented a stable phenomenaat the same time,it also shows that the abrasive particle size factors for materialerosion wear is not a key factor.d) Select a typical sample do wear scar morphology analysis and its impact angleis90°, abrasive particle size is in the range of0.104mm-0.212mm, the wind speed for12.8m/s, with the scouring experiment range from the scour center changed, the formof fracture shown are not the same, derived from the jet theory,either within the bodysegment or the initial segment, the axis of maximum speed along the radial directionfrom the axis to the edge of the boundary layer,the speed is gradually reduced. Sowhen the process of getting close to the experimental sample scour scour axis, theforce of the impact on growing, the destruction expressed more serious,in the processto closer to the scour center in the show, material erosion of increasingly diverseforms.(2) The main conclusions of ANSYS simulation experiments：Turbine blade working in ANSYS simulation environment, and the scouringexperiment of the velocity is12.8m/s as the condition of gas flow simulation analysis,got the wind turbine blade pressure distribution and velocity at the blade rotationcenter axis distribution, so provided scour protection for wind turbine blade materials.