摘要
针对不规则平面边界约束喷涂的涂膜均匀性优化问题,提出了一种考虑喷涂倾角的多变量喷涂参数优化方法。基于建立的考虑喷枪喷涂高度和喷涂倾角为变量的静态喷涂模型,采用积分法建立喷枪沿圆弧轨迹动态喷涂的涂膜厚度分布模型,通过分析喷涂轨迹测地曲率引起涂膜分布不均匀的原因,给出涂膜均匀性的变倾角修正方法,最后建立考虑喷涂倾角的多变量喷涂参数优化模型改善边界约束喷涂后的涂膜均匀性,并采用模式搜索法进行求解。以某汽车引擎盖为例,通过在Robotstudio中和MATLAB中做仿真验证所提优化方法的有效性和可行性。
Aiming at the problem of the uniformity optimization of coating film for irregular plane when boundary-constrained spraying, a multi-variable spraying parameter optimization method considering spraying inclination was proposed. Based on the established static spray model in which taking the height and inclination of the spray gun as variables, the integral method is used to establish a coating film thickness distribution model of dynamic spraying of the spray gun along the arc trajectory. Based on the cause analysis of the uneven distribution of the coating film caused by the geodesic curvature of the spray trajectory, a varying inclination correction method for coating uniformity is given. Finally, a multi-variable spray parameter optimization model considering the spray inclination was established to improve the uniformity of the coating film after boundary constraint spraying,and it was solved by pattern search method. Taking a car hood as an example, the validity and feasibility of the proposed multivariable spraying parameter optimization method is verified by simulation in Robotstudio and MATLAB.
作者
曾勇
于永庆
刘毅
刘德志
Zeng Yong;Yu Yongqing;Liu Yi;Liu Dezhi(School of Mechanical Engineering,Yancheng Institute of Technology,Jiangsu Yancheng 224051,China;School of Mechanical Engineering,Jiangsu University,Jiangsu Zhenjiang 212013,China)
出处
《机械科学与技术》
CSCD
北大核心
2020年第6期904-909,共6页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51405418)
江苏省高校自然科学基金重大项目(18KJA460009)
江苏省“六大高峰”人才项目(JXQC-028)
江苏省“青蓝工程”人才项目资助。
关键词
不规则平面
边界约束轨迹
喷涂
参数优化
涂膜均匀性
irregular plane
boundary-constrained trajectory
spray
parameter optimization
uniformity of coating film
simulation
model
