金刚石圆锯片结构与其模态频率的关联性研究  

Study on the Correlation Between Structure and Modal Frequency of Diamond Circular Sawblades

作　　者：范勇[1] 李波[1] 徐凯[1] 张萌[1] FAN Yong;LI Bo;XU Kai;ZHANG Meng(China University of Geosciences (Wuhan), Hubei Wuhan 430074, China)

机构地区：[1]中国地质大学(武汉),湖北武汉430074

出　　处：《机械设计与制造》2019年第4期13-16,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金项目(41340048);湖北省自然科学基金重点基金项目(2014CFA531);广州海洋地质调查局重点实验室开放基金(2016GMGS-DK155);国家大学生创新创业计划基金(201510491121)

摘　　要：金刚石圆锯片由于其低成本、高效率的特点而广泛应用于材料加工领域中。在锯切石材过程中,圆锯片会受到周期性的冲击而产生振动,甚至是发生共振,严重影响加工效率。论文运用试验模态分析和理论计算模态分析方法,对金刚石圆锯片模态频率与振型进行了研究,找出了圆锯片的模态频率随其结构的变化规律,针对不同圆锯片形状尺寸和锯切工艺等参数,提出了避免圆锯片在锯切时发生共振的参数约束模型。研究成果将对金刚石圆锯片的优化设计和锯切工艺的优化提供理论指导,切实提高锯切效率和高档石材加工品质,降低生产成本。Diamond circular sawblades are widely used in materials processing due to their low cost and high efficiency. In the process of sawing stones, circular sawblades will vibrate severely and even resonate caused by periodic impact, seriously affecting the processing efficiency. It applies theoretical calculation and experimental modal analysis to explore modal frequency as well as vibration of diamond circular sawblades and find out the detailed patterns of modal frequency with various sawblade structures. In this case, in accordance with parameters involving shapes and sizes of different sawblades together with sawing technology, a new parameter model on constrained condition is proposed so as to avoid the resonance. The results could further provide theoretical guidance for optimization of designing diamond circular sawblades and sawing technology, lower production costs and improve sawing efficiency and processing quality of premium stone materials.

关 键 词：金刚石圆锯片 模态频率 共振 模态分析 

分 类 号：TH16[机械工程—机械制造及自动化] TU639[建筑科学—建筑技术科学]