搜索结果: 1-15 共查到“工学 Harvester”相关记录23条 . 查询时间(0.069 秒)
Modelling of forwarding distance to maximize the utilization of medium and high-power harvester technology
forwarder performance standards work productivity time consumption timber transport
2017/4/6
Every technologist aims to maximize the performance and capacity of vehicles, particularly when deployed in technological lines. To maximize the utilization of harvester technology, particularly of fo...
Nest site and weather affect the personality of harvester ant colonies
Nest site and weather harvester ant colonies
2015/12/10
Environmental conditions and physical constraints both influence an animal’s behavior. We investigate whether behavioral
variation among colonies of the black harvester ant, Messor andrei, rema...
Power Evaluation For Flutter-Based Electromagnetic Energy Harvester Using CFD Simulations
Power Evaluation Flutter-Based Electromagnetic Energy Harvester CFD Simulations
2015/6/30
Structural instability caused by self exciting aerodynamic forces (flutter) can be used as an effective input source for small scale energy harvesters. The self exciting aerodynamic force exerted on a...
Asynchronous phase shifted electromagnetic energy harvester
Energy harvester Electromagnetic transducer Asynchronous vibration Resonance
2015/6/30
A vibration-based energy harvester is built upon the idea of transforming mechanical vibration of an inertial frame into electrical power. When the excitation frequency matches the natural frequency o...
Power Evaluation for Flutter-based Electromagnetic Energy Harvester using CFD Simulations
Flutter CFD simulation aerodynamic instability energy harvesting electromagnetic
2015/6/30
Structural instability caused by self exciting aerodynamic forces (flutter) can be used as an effective input source for small scale energy harvesters. The self exciting aerodynamic force exerted on a...
An aero-elastic flutter based electromagnetic energy harvester with wind speed augmenting funnel
aero-elastic flutter electromagnetic energy harvester wind speed augmenting funnel
2015/6/30
This paper investigates the efficiency of wind speed augmenting funnel incorporated with an aero-elastic-flutter based, energy harvester. Flutter phenomenon has been used to convert wind flow energy i...
Evaluation of work quality of the green peas harvester Ploeger EPD 490
Pisum sativum L quality of the harvest damage of grain seed properties
2014/2/24
Machines for harvesting vegetable must reliably collect the given type of vegetables at various climatic conditions, and
with adequate performance, quality and low losses. Machines for harvesting of...
Investigation on Grain Losses of the JD 1165 Combine Harvester Equipped with Variable Pulley and Belt for Forward Travel
Grain Losses Combine Harvester Equipped
2016/5/31
Grain losses due to harvesting with combine harvester is one of the main obsession in direction of wastes and losses control. For this purpose reduction of losses due to cutting platform of combine wh...
通过PRO/E和ADAMS虚拟样机技术对甘蔗收割机的整机及关键部件进行动力学仿真，分别对扶起装置、切割装置、夹持输送装置、铺放输送装置和剥叶装置等关键技术进行虚拟试验，研究了各部件收获甘蔗时的物流过程。通过高速摄影试验，分析扶起装置与夹持输送装置衔接过程并进行了田间试验验证。结果表明，虚拟样机能够顺利实现甘蔗的扶起、切割、夹持输送、铺放输送和剥叶等工序，可为生产物理样机提供参考。
联合收获机驾驶室人机界面评价方法（Evaluation Method for Man-machine Interface of Combine Harvester Cab）
联合收获机 驾驶室 人机界面评价
2010/12/28
鉴于联合收获机驾驶室人机界面评价过程中会涉及到不确定性信息，提出了一种证据推理与模糊隶属度相结合的评价方法，建立了联合收获机驾驶室人机界面评价模型，克服了以往评价方法在处理不确定性信息和不完整信息方面的不足，效用函数的引入简化了方案优劣排序，便于决策。应用实例表明，该方法能够有效地处理不确定性信息，其结果表示更符合人们对不确定性信息的处理习惯。
联合收获机视觉导航控制器设计（Design of Vision Navigation Controller for Combine Harvester）
联合收获机 视觉导航 速度自适应控制器
2010/12/28
设计了一种速度自适应导航控制器。在搭建的联合收获机视觉导航试验平台上，提出了双闭环控制结构，采用PD控制，按照导航路径偏差形式，确定了偏差e的构成，试验得到了增益K、控制周期T与行走速度v的关系，设计了小闭环控制方法，并提出了一种后轮中位动态标定方法。路面与田间试验结果表明：联合收获机能在不同速度下沿路面标示线自动行走，跟踪误差最大为0.05m。在田间不同速度下，联合收获机均能跟...
联合收获机同轴差速轴流脱粒滚筒设计和试验（Design and Test on the Coaxial Differential-speed Axial-flow Threshing Rotor of Combine Harvester）
联合收获机 轴流滚筒 同轴差速
2010/12/28
阐述了联合收获机同轴差速脱粒滚筒的工作原理和结构，并进行了试验研究。在试验的基础上用Matlab离散余弦傅氏分析法，分别建立了单速和差速脱粒情况下不同脱出物轴向分布的数学模型及其分布曲线。结果表明：差速脱粒的籽粒总破碎率为0.67%，杂余产生量为脱出物总量的8.63%，末脱净与夹带损失率为0.76%，分别比单速脱粒下降40.9%、29.5%和32.15%，脱粒的质量优于单速脱粒。同轴差速脱粒装置集...
自走式棉秆捡拾收获机设计与试验（Design and Experiment of Self-propelled Cotton-stalk Combine Harvester）
棉花秸秆 捡拾装置 输送装置 联合收获机
2010/12/28
针对我国长江、黄河流域棉秆收获问题，设计了适用于冠状交织木质化秸秆的捡拾输送装置和自适应弹性夹持喂入结构，并将棉秆的捡拾输送、切碎、抛送装箱和自动卸料功能集于一体。经试验验证，平均喂入量为1.52kg/s，切碎长度合格率为92.11%，平均生产率为0.94hm2/h，可以达到棉秆收获机械化作业的要求。
联合收获机驾驶室人机界面布局优先序研究（Study on Priorities of Human-machine Interface in Combine Harvester Cab）
联合收获机 驾驶室 人机界面
2009/12/28
为了实现联合收获机驾驶室人机界面的优化设计，以自走式谷物联合收获机为研究对象，从人机工程学角度分析了驾驶室人机界面的元件构成，在调查分析基础上，采用改进的TOPSIS法对人机界面各元件的重要程度进行了分析和排序。根据各元件的优先序进行布局，即将优先序排在同类元件中最前的元件布置在驾驶员最容易伸及或看到的区域，其他元件根据优先序依次布置在次级可伸及区域和可见区域，从而保证驾驶员操作和观察的方便性和舒...