搜索结果: 1-9 共查到“公路运输 design”相关记录9条 . 查询时间(0.155 秒)
Finding Computationally Inexpensive Methods to Model the Flow Past Heavy Vehicles and the Design of Active Flow Control Systems for Drag Reduction
Finding Computationally Inexpensive Methods Model Flow Past Heavy Vehicles Active Flow Control Systems Drag Reduction
2015/7/6
This paper explores the use of computational tools to analyze the aerodynamic e ects that Coanda jets have on the drag, stability and maneuverability of heavy vehicles. To facilitate the analysis and ...
车载捷联三自由度稳定平台设计与性能试验（Design and Performance Experiment of Vehicle-borne Strapdown 3—DOF Stabilization Platform）
汽车 车载环境识别系统 捷联稳定平台
2009/5/22
根据车载视线稳定平台的结构特点及功能要求，设计了捷联稳定平台系统。结合稳定平台控制系统上、下位机间的通信协议，运用多线程和多媒体定时器技术，采用Visual C++ 6.0编写了实时采集与发送平台各框位置信息的上位机程序。为验证平台控制系统的实时通信性能，对稳定平台进行了动态性能测试。试验结果表明，平台控制系统的实时通信性能满足使用要求。
在分析磁流变减振器工作模式基础上，结合汽车减振器的工作要求，分别完成了混合模式和流动模式磁流变减振器的结构设计，建立了两种模式下的数学模型并进行了相关的仿真研究，设计出了产品并进行了试验研究。比较分析发现，二者阻尼力在低速时差异不大，但是在高速时差异较大。从工程实现和控制角度看，混合工作模式可以减少阻尼孔的堵塞并具有较大的可控倍数，其性能要明显优于流动模式减振器。通过试验证明，建立的模型、提出的设...
工程车辆主驾驶座椅寿命测试系统设计与试验（Design and Experiment of Life-span Test System for Vehicle Driver Seat）
工程车辆 座椅 寿命
2009/5/22
针对工程车辆主驾驶座椅使用过程中出现的损坏问题，设计了工程车辆主驾驶座椅寿命测试系统。阐述了六自由度运动与视频的同步记录和同步再现的实现装置及控制技术，以及利用有线通讯来实现运动与视频同步播放的方法。以液压伺服控制六自由度运动模拟器为试验装置，应用运动与视频的同步记录和同步再现技术，对工程车辆主驾驶座椅进行了振动疲劳试验，试验结果验证了应用该系统进行车辆座椅开发的可行性。
重型车辆电传动控制系统设计与仿真 Design and Simulation of Electric Drive Truck Control System
重型车辆 电传动 电动轮
2009/5/18
设计了由转速、电流双闭环构成的电传动控制系统，使驱动电动机的输出功率与发动机输出功率相匹配，保证发动机能按其经济特性运行。起动时保持恒定最大允许电流，在尽可能短的时间内增加转速，使车辆具有良好的起动性能。在车辆行驶中保持系统的恒定输出，克服行驶阻力突然变化等扰动的影响。运用Matlab进行了仿真,得到了良好的静、动态品质。
TRIZ method for light weight bus body structure design
TRIZ Light weight bus body Finite Element Method (FEM)
2010/1/19
Purpose: The purpose of the work is the generalization of available data on averting and using the thermal
deformations in the technology, the analysis of the methods of compensating the thermal defo...
Seven American TODs: Good Practices for Urban Design in Transit-Oriented Development Projects
Seven American TODs Good Practices Urban Design Transit-Oriented Development Projects
2010/10/25
In the past few decades, Transit-Oriented Development (TOD) has emerged as a popular and influential planning concept in the United States. Physical design is an important aspect of making TOD project...
The relation between the discomfort level of automotive industries operators towards their workstation design and work environment
Heat Noise Lighting Productivity
2010/1/20
Purpose: This paper proposes an industrial knowledge management approach that employs BSC and KPI to
manage the consultancy project and uses collaborative tools to integrate the knowledge from the co...
Design and examining sensitivity of machine driving systems with required frequency spectrum
Constructional design Dynamic flexibility Polar graphs
2010/2/8
Purpose: The paper describes the method of synthesis and sensitivity analysis of dynamics characteristics applicable for aiding the process of designing of machine driving systems.
Design/methodology...