期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
The Development and Application of 2BDQ-8 Rice Direct Sowing Machine 被引量:2
1
作者 杨新春 Xin-chun 《Agricultural Science & Technology》 CAS 2010年第5期187-190,共4页
[Objective] The aim was to introduce the development and application of 2BDQ-8 rice direct sowing machine and provide a theoretical basis for rice mechanization production. [Method] 2BDQ-8 rice direct sowing machine w... [Objective] The aim was to introduce the development and application of 2BDQ-8 rice direct sowing machine and provide a theoretical basis for rice mechanization production. [Method] 2BDQ-8 rice direct sowing machine was used for the promotion test in field of several cities and counties in Jiangsu Province,and artificial rice planting and mechanization rice planting were compared to explore the production and economic situation. [Result] 2BDQ-8 rice direct sowing machine had advantages such as high efficiency and low cost,the rice direct sowing machine saved about 30% compared to the artificial rice planting and mechanization rice planting,and the overall efficiency was significant. [Conclusion] 2BDQ-8 rice sowing machine was a production technology that had low cost and high efficiency,which should be widely applied. 展开更多
关键词 2BDQ-8 rice direct sowing machine Bud seed Direct seeding
下载PDF
Lightweight design of peanut sowing machine frame based on finite element analysis 被引量:1
2
作者 Yan Yu Linsong Diao +4 位作者 Dongwei Wang Jiasheng Wang Xiaomin Wang Xiaozhi Tan Dazhi Yi 《International Journal of Agricultural and Biological Engineering》 SCIE 2023年第3期120-129,共10页
In order to reduce the weight and energy consumption of the whole machine against the heavy mechanical structure and excessive strength redundancy in current small-scale peanut seeders with one ridge and two rows,a fi... In order to reduce the weight and energy consumption of the whole machine against the heavy mechanical structure and excessive strength redundancy in current small-scale peanut seeders with one ridge and two rows,a finite element model of the frame was established and the static finite element analysis and modal analysis were conducted with ANSYS Workbench.Sensitivity analysis that focuses on the size of intermediate support beams and other components was performed so as to set up a multi-objective optimization model.Then a size optimization and multi-objective optimization collaborative scheme was adopted so that the target was optimized by the Seagull Optimization Algorithm(SOA)to obtain the optimal solution.Based on the results of the finite element analysis,the mechanical structure of the peanut seeder was optimized for lightweight design.Furthermore,response surface plots and static structural analysis were applied for validation.It turned out that the maximum stress of the optimized structure was less than the allowable stress;the weight of the frame reduced by 32.5%after optimization;and the first-order natural frequency did not coincide with the engine input speed or working speed,thus no resonance will occur.Field experiments showed that the qualified rate of row spacing was≥96%when operating at different speeds of different types of seeders;The seeding depth operation performance was stable,with an average qualified rate of seeding depth of≥92%;The performance of the seeders was also stable and reliable due to the lightweight prototype structure.The research outcomes can provide an effective technical reference and theoretical basis for the lightweight design of peanut seeders and for its continuous improvement as well in the future. 展开更多
关键词 peanut sowing machine multi-objective optimization lightweight design finite element analysis OPTIMIZATION
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部