大型振动筛的动态设计理论与应用 03.14

大型振动筛的动态设计理论与应用 英文文献翻译
Dynamic design theory and application of large vibrating screen
Abstract
The reliability is a key factor for the design and manufacture of large vibrating screen. In the paper, we presented a new large vibrating screen with hyperstatic net-beam structure. Dynamic characteristic of the vibrating screen was researched and dynamic
simulation method of large screening machines was explored. We used finite element method (FEM) to analyze dynamic characteristic of large vibrating screen with hyperstatic net-beam structure. Multi natural frequency, natural modes of vibration and dynamic response of the vibrating screen were calculated. The structural size of stiffeners on
摘要：
可靠性是设计和制造一个大型振动筛的关键因素。在论文中，我们提出了一个新的超静定网梁结构振动筛的理念。对振动筛的动态特性和动态模拟大型筛分机方法进行了研究和探讨。我们用有限元法 分析大型动态超静定网梁结构振动筛的特点。对于振动筛的固有频率、固有振动模式和动态响应进行了计算。对于在多频率的约束下侧板上加强筋的结构尺寸进行了优化，并给出一个自适应的优化准则。结果表明，增强振动筛的结构强度 ，其弯曲变形的固有频率也得到了增强。模态频率远离工作频率，因此，该结构能够有效地避免共振，并减少了破坏性。该振动筛的最