矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件，叶片在运行时不断受到气流的作用力，从而使叶片产生振动，当叶片振动的频率与叶片的固有频率接近时，容易产生共振从而导致叶片的断裂。一旦叶片断裂时，对主要通风机的安全运行产生致命的影响，从而导致矿山、化工等企业发生重大事故，将会产生不可估量的损失。基于有限元分析软件ANSYS，对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率，对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析，并且解决了叶片频率共振的问题，从而为主要通风机叶片结构设计提供理论依据，并对主要通风机叶片的安全运行提供保障。

Modal analysis and application of ANSYS on blade of mine explosion-proof axial flow counter rotating main fan

The blades of the explosion-proof counter-rotating main fan of the energy-efficient mine explosion-proof main fan were the key parts of the main fan operation.The blades were constantly subjected to the force of the air flow during operation，so that the blades generate vibration when the frequency of the blade vibration approaches the natural frequency of the blade.It was easy to generate resonance and cause the blade to break.Once the blade breaks，it would have a fatal effect on the safe operation of the main ventilator，resulting in major accidents in mines，chemical companies，etc.，which would cause incalculable losses.Based on the finite element analysis software ANSYS，the modal analysis of the energy-efficient mine explosion-proof axial flow counter-rotating main fan blade was performed and the corresponding sixth-order modal frequency was generated，mainly for the main fan blade operating frequency，natural frequency and generated the resonance problem was analyzed in principle and the problem of frequency resonance of the blade was solved，so as to provide a theoretical basis for the design of the main fan blade structure，and to provide guarantee for the safe operation of the main fan blade.