CAJ | 학술논문

针对冲床工作时滑块受周期性冲击载荷大的工况特点，对安装在冲床滑块上的电子式调模计数器进行了减振研究。在电子式计数器结构的基础上，建立了冲击载荷作用下计数器隔振系统的动力学模型；利用傅里叶级数将冲床周期性冲击激励展开并施加到该模型上，并通过分析该模型的动态响应得到隔振系统的传递率。以光电传感器的抗振度为减振指标，采用遗传算法完成了该隔振系统的隔振参数优化。最后在Simulink软件环境下建立了系统的隔振仿真模型，并进行了力和位移传递率的仿真分析。仿真结果显示：计数器的力与位移的传递率明显减小，隔振后计数器承受的冲击加速度小于光电传感器规定的抗振度，达到隔振指标。
침대충상공작시활괴수주기성충격재하대적공황특점，대안장재충상활괴상적전자식조모계수기진행료감진연구。재전자식계수기결구적기출상，건립료충격재하작용하계수기격진계통적동역학모형；이용부리협급수장충상주기성충격격려전개병시가도해모형상，병통과분석해모형적동태향응득도격진계통적전체솔。이광전전감기적항진도위감진지표，채용유전산법완성료해격진계통적격진삼수우화。최후재Simulink연건배경하건립료계통적격진방진모형，병진행료력화위이전체솔적방진분석。방진결과현시：계수기적력여위이적전체솔명현감소，격진후계수기승수적충격가속도소우광전전감기규정적항진도，체도격진지표。
In this paper, the vibration reduction design of slide height counter installed on the slider of punch is introduced. Firstly, the structure of slide height counter is defined. Secondly, a two-degree-of-freedom dynamic model is established. Then, the cyclic impulsion signal is processed through Fourier expansion and applied to the model. By analyzing the dynamic response from the model, the frequency ratio is obtained in which both the transmissibility and amplitude increase significantly. The vibration reduction index is then determined and its parameters are calculated accordingly by employing optimization algorithm. Finally, a visual simulation model in Simulink is built to verify the vibration reduction effect. The result shows that the transmitting force and the amplitude decrease significantly and vibration reducing effect is achieved as expected.