• 首页|编委会|期刊简介|期刊荣誉|投稿指南|联系我们|过刊浏览|在线留言
涂群资,杨咏文,黄汉英,李路,赵思明,熊善柏.车载活鱼运输制动阶段力学特性[J].华中农业大学学报,2019,38(4):
车载活鱼运输制动阶段力学特性
Mechanical characteristics of vehicle mounted live fish in transport braking phase
投稿时间:2018-08-13  
DOI:
中文关键词:  活鱼运输  制动力学曲线  曲线拟合  最小二乘法  粒子群算法
英文关键词:transportation of live fish  braking mechanical curve  curve fitting  least squares  particle swarm optimization
基金项目:基金项目: 现代农业产业技术体系专项(CARS-45-27)
作者单位E-mail
涂群资 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070 tqz20170214@163.com 
杨咏文 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070  
黄汉英 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070 hhywmx@mail.hzau.edu.cn 
李路 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070  
赵思明 华中农业大学食品科学技术学院武汉 430070  
熊善柏 华中农业大学食品科学技术学院武汉 430070  
摘要点击次数: 170
全文下载次数: 265
中文摘要:
      以鲫、草鱼、鳊、黄颡鱼为试验材料,研究车载活鱼在直线加减速运输过程中鱼体受力情况。利用最小二乘法,以高斯函数作为拟合函数,分别对以40、60、80 km/h直线行驶时制动阶段的力值曲线进行拟合,运用粒子群算法对拟合后曲线进行优化,最终曲线的决定系数为0.902~0.986,标准误差为0.058~0.145,拟合效果良好。分析了不同种类鱼和车速对拟合曲线的影响,结果表明,直线行驶时速度越大,制动阶段拟合曲线的比例系数及峰宽参数越大,在相同情况下,制动时鲫所受冲击最大(38.02 N),黄颡鱼最小(15.69 N),直线行驶时的车速和鱼的种类对位置参数无明显影响,直线行驶时的车速对拟合曲线的指数无明显影响。最后对制动阶段压力测试板进行受力分析,结果表明,制动阶段压力实测值较理论值相比偏小,相对误差在15.990%以内。
英文摘要:
      Crucian,grass carp,bream and yellow catfish were used to study the stress distribution of car borne live fish in the process of linear acceleration and deceleration.Using the least squares method and Gaussian function as the fitting function,the force value curves of the braking phase when traveling in a straight line of 40,60,80 km/h were respectively fitted,and the particle swarm algorithm was used to optimize the curve after fitting.The final curve had a coefficient of determination between 0.902 and 0.986,and the standard error was between 0.058 and 0.145.The fitting effect was good.The results of analyzing effects of different types of fish and vehicle speed on the fitting curve showed that the greater the speed in straight line driving,the larger the proportional coefficient and peak width parameter of the braking curve of the braking phase.Under the same situation,the squid was most affected by the braking (38.02 N) and the carp was the smallest (15.69 N).The speed of the vehicle and the type of fish in the straight line had no obvious influence on the position parameters,and the speed of the vehicle during straight running had no significant influence on the index of the fitted curve.The results of analyzing the force of the pressure test board in the braking phase showed that the measured value of the pressure in the braking phase was smaller than the theoretical value,and the relative error was less than 15.990%.
查看全文  查看/发表评论  下载PDF阅读器
关闭
版权所有:华中农业大学学报(自然科学版)  
主管单位:教育部 主办单位:华中农业大学 地址:湖北武汉南湖狮子山华中农业大学内
电话:027-87287364 电子邮件:hnlkxb@mail.hzau.edu.cn
您是本站第7307215位访问者  今日一共访问2540次  
技术支持:北京勤云科技发展有限公司