相关实验视频
Updated: Jan 16, 2026

Ultrasonic Fatigue Testing in the Tension-Compression Mode
Published on: March 7, 2018
一个高性能纵向曲的超声波振动喇:结构创新和动态测试
Tingting Wang1, Peng Yao2, Shuoshuo Qu1
1Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan 250061 Shandong, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministy of Education, Jinan 250061 Shandong, China.
一个新的非轴对称的喇设计实现了旋转超声波振动辅助研磨的动态平衡. 这种凸轮型喇增强了振动性能和振幅控制,克服了传统设计的局限性.
科学领域:
- 机械工程 机械工程
- 材料科学 材料科学 材料科学
- 振动分析 振动分析
背景情况:
- 用于旋转加工的传统切削工具需要轴对称的设计来实现动态平衡.
- 现有的纵向曲复合超声波振动喇是非轴对称的,由于质量偏心,阻碍了它们在旋转超声波振动辅助研磨 (RUVAG) 系统中的使用.
- 旋转运动中的非轴对称结构通常依赖于巧妙的设计来实现动态平衡.
研究的目的:
- 为纵向曲复合超声波振动提出并验证一种新型非轴对称的喇设计,在旋转过程中实现动态平衡.
- 整合动态平衡和波浪理论用于数学建模和有限元分析,优化角结构.
- 实验性地研究拟议的凸轮形状喇的振动性能,共振频率和振幅特征.
主要方法:
- 数学建模,集成动态平衡理论和波浪理论.
- 对于角结构优化的有限元分析.
- 设计和制造具有不同的几何尺寸的两个凸轮形状角.
- 对共振频率和振动幅度 (纵向和曲) 的实验验证.
主要成果:
- 与模拟相比,实验共振频率的相对误差较低 (0.478%和0.728%).
- 测量的纵向和曲振动幅度与模拟结果进行了验证,相对误差在7.15%至13.77%之间.
- 凸轮尺寸显著影响振动幅度,凸轮比率增加增强了振动;超声波发电机功率也放大了振动模式.
结论:
- 拟议的凸轮形状喇在非轴对称结构中成功实现了纵向曲的复合振动,同时保持了旋转应用的动态平衡.
- 凸轮形状喇设计表现出优越的振动性能和精确的振幅可控性,使其适合RUVAG系统.
- 实验结果证实了理论预测,并突出了凸轮几何和功率对振动特征的影响.
更多相关视频
09:21Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer
Published on: September 28, 2015
08:40Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing
Published on: February 11, 2016
相关概念视频
Bending and Torsional Moments
The reaction developed in a structural element when subjected to an external force causes the element to bend. When a structural element bends upwards, it creates compressive normal forces on the top and tensile normal forces on the bottom, resulting in a couple that determines the bending...
Unsymmetric Loading of Thin-Walled Members
The concept of the shear center is crucial in countering the...
Bending of Members Made of Several Materials
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
Thin-Walled Hollow Shafts
Design of Prismatic Beams for Bending
Bending
In pure bending, the bending stress in a beam is calculated based on the bending moment and...