ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

To improve seedling pickup performance,，an elastic penetration-type seedling claw was designed. The mechanical properties of seedling pots were experimentally measured，and the Hertz - Mindlin with JKR model in EDEM,，using 65 Mn material,，was selected for the simulation. The rolling distance served as the response value to calibrate contact parameters between seedling pot particles and the material. Dynamic modeling of the seedling claw was completed in RecurDyn，and coupled EDEM -RecurDyn simulations were conducted to investigate the effects of penetration depth and speed on seedling pickup. The analysis indicated that a penetration depth of 33 mm and a speed of 150 mm/s resulted in optimal pickup performance. A test bench was then constructed to validate these findings,，confirming the simulation results with a 100% success rate in seedling pickup and less than 5% damage to the seedling pot matrix,，demonstrating excellent effectiveness.