The Effect of Ultrasonic Vibration on the Assembly and Installation Force of Fan Disk Blades
To study the effect of ultrasonic vibration on the assembly and pressing force of fan disk blades,an assembly method combining ultrasonic vibration and pressing is proposed.And the control variable meth-od is used to study the influence of four factors,namely press installation form,press installation displace-ment,press installation speed,and vibration amplitude,on the assembly press installation force of adjacent blades of the fan disk group.Research has shown that superimposed ultrasonic vibration can effectively re-duce the pressure installation force of adjacent blade assemblies in fan disk groups;The larger the pressing displacement,the greater the required pressing force for assembly.Superimposing a certain amplitude of ul-trasonic vibration can effectively reduce the difference in pressing force between different pressing displace-ments;Regardless of whether ultrasonic vibration is superimposed or not,within a certain range of pressing speed,the pressing speed basically does not affect the pressing force;Within a certain range of vibration amplitude,as the superimposed vibration amplitude increases,the effect of reducing the pressing force be-comes better.When reaching a certain vibration amplitude,the best effect of reducing the pressing force can be achieved,which can reduce the pressing force by 75%.Beyond this vibration amplitude,the effect of re-ducing the pressing force tends to stabilize or even weaken.
fan disk groupblade assemblypressing forceultrasonic vibration
万方数据
维普
