CAJ | 학술논문

四辊轧机在轧制过程中，辊系受力非常复杂，研究辊系的振动除考虑其它因素外还应考虑万向接轴附加弯矩的影响。建立工作辊耦合动力学模型，证明辊系振动存在水平和垂直方向的耦合关系，并进行数值仿真，得出万向轴倾角的存在使部分扭振转换成万向接轴弯振，进而影响辊系的动力学特性；仿真表明，万向轴倾角在一定角度下位移响应会出现分岔等现象。
사곤알궤재알제과정중，곤계수력비상복잡，연구곤계적진동제고필기타인소외환응고필만향접축부가만구적영향。건립공작곤우합동역학모형，증명곤계진동존재수평화수직방향적우합관계，병진행수치방진，득출만향축경각적존재사부분뉴진전환성만향접축만진，진이영향곤계적동역학특성；방진표명，만향축경각재일정각도하위이향응회출현분차등현상。
Forces of the four-roll mill roll system in the rolling process are very complex .Researching roll system vibration should take the impact of the universal joint shaft additional bending moment into consideration as well as other factors .Through establishing coupled dynamic model of work roll , it demonstrates that there is the cou-pling relation between horizontal direction and vertical direction in rolling vibration .Because of the universal shaft in-clination angle presence , some part of the torsional vibration which can convert into the universal joint shaft bending vibration affects rolls dynamics vibration by numerical simulation .It also shows that displacement response appears bifurcation phenomena at a certain universal shaft inclination angle , etc.