CAJ | 학술논문

采用模态分析技术研究一种四工位铝发热盘自动浇铸系统中平盘结构的固有频率和振型,应用ANSYS 8.0有限元软件计算出该结构的前10阶固有频率和各阶频率所对应的振型.结合工程实际应用,重点分析了该结构前3阶固有频率,分别是211.78,214.86,225.12 Hz.结果表明:浇铸工位质量较大将导致平盘旋转时弯曲变形较大,且最大变形量出现在平盘轮缘位置.这对结构的安全性、寿命和机器人浇铸、拆装产品操作等都带来不利的影响.要提高平盘刚度,则应适当减小平盘直径、在平盘轮缘下加装支撑装置和减轻浇铸工位的质量.
채용모태분석기술연구일충사공위려발열반자동요주계통중평반결구적고유빈솔화진형,응용ANSYS 8.0유한원연건계산출해결구적전10계고유빈솔화각계빈솔소대응적진형.결합공정실제응용,중점분석료해결구전3계고유빈솔,분별시211.78,214.86,225.12 Hz.결과표명:요주공위질량교대장도치평반선전시만곡변형교대,차최대변형량출현재평반륜연위치.저대결구적안전성、수명화궤기인요주、탁장산품조작등도대래불리적영향.요제고평반강도,칙응괄당감소평반직경、재평반륜연하가장지탱장치화감경요주공위적질량.
@@@@The inherent frequency and vibration mode of a flat plate structure in the four working-stations aluminum heating plate automatic casting system were studied by modal analysis technology. The former-ten-steps inherent frequency and vibration modes of the structure were calculated by ANSYS 8. 0 finite element software. On the basis of the engineering practical application,the former-three-steps inherent frequency and vibration modes were especially analyzed,and the values were 211. 78,214. 86,225. 12 Hz re-spectively. The conclusion shows that the bending-deflection of rotating flat plate is serious if the quality of casting working-station is heavy,and the maximum deflection appears in the rim of the flat plate. It is harmful to the structure,such as decreasing the safety and lifetime or increasing the difficulties of casting and dismounting products by robot. It is sure that the following measures can be used to increase the flat plate stiffness,such as decreasing the flat plate diameter,retrofitting support device under the rim of flat plate and lightening the casting working-station quality.