摘要
根据惯性约束聚变(ICF)靶零件的特点,确定用于ICF靶半自动装配系统微夹钳的技术指标,并完成其结构设计。该微夹钳采用柔性铰链机构和压电陶瓷驱动,可根据需要更换不同形状和开口距离的夹口,以适应夹持不同靶零件。以压电陶瓷的2种极限参数为载荷,分析了微夹钳的张合量、应力分布、应变量,并采用非线性接触分析对夹持力和夹持效果进行了模拟。通过多次有限元分析和优化设计,确定了微夹钳的最佳尺寸结构。从各项分析结果表明:该微夹钳各项性能参数满足ICF靶装配的要求。
According to the characters of ICF targets,the performance parameters of the microgripper used for the semi-automatic assembly system of ICF targets are defined.The framework of microgripper is designed in this work.The flexure hinge and piezoceramics actuator are adopted to the microgripper.The different tools of the microgripper can be changed for the targets.The two limit parameters of the piezoceramics actuator are set as the load,and the finite element analysis of the displacement,stress distribution and strain are carried out.Especially,the contact force and holding effect of the microgripper are simulated by the nonlinear contact analysis.The finite element analysis and optimization design for the microgripper are carried out many times,and the best framework and size of the microgripper are defined.By analyzing the data,it concludes that the performance parameters of the microgripper can meet the requirement.
出处
《传感器与微系统》
CSCD
北大核心
2011年第4期120-123,共4页
Transducer and Microsystem Technologies
基金
国家高技术发展计划资助项目
关键词
微夹钳
柔性铰链
有限元分析
非线性接触分析
ICF靶
microgripper
flexure hinge
finite element analysis（FEA）
nonlinear contact analysis
ICF targets
