搜索结果: 1-9 共查到“农业工程 2-D material”相关记录9条 . 查询时间(0.025 秒)
Mechanical properties of composite material reinforced with textile waste from the process of tyres recycling
epoxy resin quality testing microfiber testing
2016/9/2
The paper deals with the polymeric fibre composite with the reinforcement on the basis of the waste from the process of the tyres recycling. The aim of the research was the use of the material of clea...
Epoxy resin filled with primary and secondary raw material – useable in agriculture
hardness tensile strength waste wear
2014/11/28
Hard inorganic particles in the interaction with polymeric materials increase wear resistance. Also reactoplastics are
suitable for filling with micro- and nano-particles for a purpose of some mecha...
基于Drucker-Prager屈服准则与弹性力学问题有限元方法,以小麦为例建立了松散物料与某型号钢板锥仓的接触数学模型。在合理建模基础上解决了松散物料与锥仓接触时接触面上必须满足的位移条件、力的传递关系以及力与位移的关系。通过建立求解方程与计算程序,使用Lagrange乘子法与罚函数法相结合进行强制接触协调,获得了较精确的计算结果。结果表明,散料在锥仓中接触摩擦应力与接触状态相关,应力值较小,总...
仓内谷物通风干燥孔道网络数值模拟与验证(Pore Network Numerical Simulation and Experiment on Drying of Corn Material in Bin)
谷物 干燥 模拟 孔道网络
2009/11/24
利用前已建立的仓内谷物通风干燥孔道网络模型,对玉米热风干燥实验过程进行了数值模拟,并将模拟结果与实验数据进行了比较。结果表明:该模型可有效模拟谷物的干燥过程;干燥时玉米颗粒平均温度与玉米堆孔隙气相平均温度之间存在明显的差别,后者始终比前者温度要高,故以往将谷物与孔隙气相温度不加区分,视为同一值的做法是不妥的;配位数对干燥的影响十分显著,其值越大,物料干燥越快;当物料含杂、配位数值较小时,干燥仓内会...
秸秆纤维墙体结构高温性能和火灾温度场研究(Research in High Temperature Performance and Fire Temperature Field of Straw Fiber Composite Material)
秸秆纤维轻质墙体 高温性能 火灾 温度场 模型
2009/11/24
以秸秆纤维轻质墙体为研究对象,分析其结构和组成及其对材料高温性能的影响;通过TG-FTIR分析,研究了高温作用下的秸秆纤维墙体材料的物理化学变化过程。在上述基础上,针对该种新型建筑材料进行了烧失量实验,利用DRS2.6数据回归分析软件,建立了火灾温度-烧失量的一元回归模型。同时,以200mm厚的秸秆纤维外墙保温板为例,在ISO9705标准火灾实验间对温度-烧失量回归模型进行了校验。结果表明:回归方...
液化玉米秸秆基固沙剂控制土壤风蚀试验(Experiment on Sandy Fixation Material Based on Liquefied Corn Stover to Decrease Wind Erosion)
玉米秸秆 液化 聚氨酯 土壤风蚀 固沙剂
2010/5/5
以室内风洞试验机为主要设备,研究了液化玉米秸秆及液化玉米秸秆基聚氨酯作为固沙剂对筑渣土的保护效应。研究结果表明,二者均能粘结土样表面的大小颗粒形成保护层,提高建筑渣土的抗风蚀性;当液化玉米秸秆的喷施量较低时,随着风速的提高,对土壤的保护作用逐渐消失,土壤的侵蚀度迅速增加;液化玉米秸秆基聚氨酯作为固沙剂的效果要明显优于液化玉米秸秆,当其喷施量为120.37g/m2时,起沙风速超过20m/s,当固沙效...
考虑物料结合系数的倾角振动输送机系统动力学分析(Dynamic Analysis of a Vibrating Conveyer with Inclination in Consideration of Material Combination Coefficient)
振动输送机 物料结合系数 物料阻尼系数
2009/5/22
在考虑物料非线性作用力基础上建立含有物料结合系数的倾角振动输送机力学模型,采用解析法对该模型进行求解与分析。分析结果表明:当工作面有倾角时物料结合系数比工作面无倾角时小;物料结合系数与阻尼系数随着振幅的增大而减小,其中物料结合系数减小较快;物料结合系数随着转速的增加而减小。
The effect of the tractor engine rated power on diesel fuel consumption during material transport
engine characteristics transport rated power fuel consumption performance
2014/2/27
The authors of this paper determined in a field measurement how the change of the tractor engine power in a tractor-trailer combination affects the diesel fuel consumption related to the unit of trans...
Comparison of two possibilities for mowing machine material feed rate measurement under laboratory conditions
mowing machines feed rate measurement accuracy
2014/2/28
The impact of materials and conditions (parameters) changes on mowing machine material feed rate measurement accuracy were measured under laboratory conditions. The influence of crop variety, crop mat...