| 1. | Research on electrical power traction experimental system with feedback - energy 能量反馈式电力牵引试验系统研究 |
| 2. | Verification regulation for force measuring system of fraction power test car of railway 牵引试验车测力系统检定规程 |
| 3. | Steel cord conveyor belts . longitudinal traction test . part 1 : measurment of elongation 钢绳传送带.纵向牵引试验.第1部分:伸长的测量 |
| 4. | Steel cord conveyor belts . longitudinal traction test . part 2 : measurment of tensile strength 钢绳传送带.纵向牵引试验.第2部分:抗拉强度的测量 |
| 5. | Steel cord conveyor belts - longitudinal traction test - part 1 : measurement of elongation iso 7622 - 1 : 1984 ; german version en iso 7622 - 1 : 1995 钢丝芯线输送机皮带.纵向牵引试验.第1部分:伸长率的 |
| 6. | Steel cord conveyor belts - longitudinal traction test - part 2 : measurement of tensile strength iso 7622 - 2 : 1984 ; german version en iso 7622 - 2 : 1995 钢丝芯线输送机皮带.纵向牵引试验.第2部分:抗拉强度 |
| 7. | The density of the resultant spectrums of the road surface coincides with that of the expecting power spectrums generally . it lays foundations for wide researches in the artillery driving experiments in the future 所产生的路面不平度路谱与预期功率谱基本相符,为今后进一步开展火炮牵引试验研究提供了基础; 2 |
| 8. | The acceleration time process of road surface plainness is got by using two integral calculus of the acceleration time process which is measured by five - wheel equipments . this data is worked as the input of the road surface for theoretical calculation . the result of experiments mostly fits that of calculation , and then the multiple - acceleration power spectrum distribution of the artillery and tractor are acquired 在沥青路面、破损铺砖路和砂石路面上以不同速度进行了平稳随机激励牵引试验,用五轮仪测量得到的加速度时间历程进行两次积分的方法得到路面不平度的时间历程做为路面输入进行对应的理论计算,试验结果和计算结果基本相符,得到了火炮和牵引车多个加速度功率谱分布。 |
| 9. | This new technology changes from the traditional method by which the induced and compressor wheel separately are designed and produced to a new one by which the one - piece compressor is designed . on the basis of this new technology and the optimum blade profile , the performance of both the compressor and the turbocharger is largely improved . through the heating power calculation of the compressor , the analysis of the surge and the block of the compressor , the test - bed performance test of the turbocharger , the matching test of turbocharger and diesel engine , the propulsion test of the turbocharger on plateau condition , it is proved that the newly - designed compressor not only has high efficiency , but also improves the flow distribution in the high efficiency area so that the propulsion line can run through the high efficiency area 主要内容包括:提出一种全新的压气机叶轮技术和概念,这种技术将传统的导风轮和压气机分开设计、单独加工改为整体设计、整体加工的单体叶轮;从增压器与柴油机配机计算所得出的基本参数出发,通过对压气机进行热力计算,确定压气机的基本结构参数;再对叶型以及叶轮轮廓与叶轮罩壳的配合间隙进行优化,对新设计的压气机进行喘振和堵塞分析;通过增压器平台性能试验,验证了新设计的压气机的性能水平得到了较大的提高,达到了提高增压器的整体性能水平的目的;通过增压器与柴油机配机试验、以及增压器用于高原条件下的牵引试验,验证了新设计的压气机不但具有高效率,还改善了高效率区的流量分布,使牵引特性线贯穿高效率区。 |