CAJ | 학술논문

基于传统圆截面变幅杆的设计理论，利用波的纵振动方程求解倒锥形复合变幅杆的谐振频率、节点位置和放大系数等性能参数。利用WORKBENCH软件的模拟仿真功能，建立倒锥形复合变幅杆的有限元模型，对变幅杆进行包括模态和谐响应在内的动力学分析。通过分析变幅杆对称面上的等效应力云图，获得变幅杆在工作状态下应力集中的位置，为变幅杆的工艺优化提供可靠的指导，同时也为形状复杂的变截面复合变幅杆的设计和分析提供了新的方法。
기우전통원절면변폭간적설계이론，이용파적종진동방정구해도추형복합변폭간적해진빈솔、절점위치화방대계수등성능삼수。이용WORKBENCH연건적모의방진공능，건립도추형복합변폭간적유한원모형，대변폭간진행포괄모태화해향응재내적동역학분석。통과분석변폭간대칭면상적등효응력운도，획득변폭간재공작상태하응력집중적위치，위변폭간적공예우화제공가고적지도，동시야위형상복잡적변절면복합변폭간적설계화분석제공료신적방법。
Based on the design theory of the traditional circular section horn ,performance parameters including the resonant frequency ,node position and amplification factor of the inverted conical horn can be solved using the longitudinal vibration equation of the sonic. Finite element analysis software WORKBENCH was used to establish the composite horn finite element model ,and its dynamics including modal analysis and harmonic response analysis were analyzed. By analyzing the equivalent stress cloud of the horn on the symmetry plane ,the position of stress concentration in its working condition was obtained,so reliable guidance for the process optimization of the horn was provided. And the new design and analysis methods for the complex shape of variable cross-section horn were provided.