轨道车辆座椅悬架的振动分析和最佳设计,以提高战斗效率
Vanquynh Le1, Vanliem Nguyen2, Tienhan Nguyen3
1Faculty of Vehicle and Energy Engineering, Thai Nguyen University of Technology, Thai Nguyen, 250000, Vietnam.
Scientific reports
|September 10, 2025
概括
轨道车辆 (TV) 的悬挂升级显著提高了驾驶员的舒适度和在崎的地形上提高了准效率. 一个优化的负刚性结构 (NSS) 悬架将关键的振动指标降低了60%以上,改善了车辆的整体性能.
科学领域:
- 机械工程 机械工程
- 汽车工程 汽车工程
- 振动分析 振动分析
背景情况:
- 在糟糕的地面上运行的轨道车辆 (TV) 经历了显著的振动,影响了驾驶员的准效率和舒适性.
- 由于振动导致驾驶员性能下降,可能会降低车辆的整体战斗效率.
研究的目的:
- 调查电视操作条件和悬挂参数对驾驶员准效率和舒适度的影响.
- 评估一种具有优化负硬度结构 (NSS) 的新型座椅悬架在减轻振动方面的有效性.
主要方法:
- 在Matlab/Simulink. developed中开发了一种电视,座位和驾驶员的动态交互模型.
- 在各种电视操作条件下进行模拟,以分析悬挂系统动态.
- 使用相对位移 (z_w) 和垂直头部加速 (a_wz1) 的平方根平均值来量化驾驶员的准效率和舒适度.
主要成果:
- 发现操作条件和电视动态参数显著影响驾驶员准效率和舒适度.
- 与旧的悬架相比,新的NSS座椅悬架在z_w和a_wz1方面都显示出了显著的减少.
- 具体来说,z_w和a_wz1分别减少了63%和62%,在以60公里/小时的ISO-E级路面上.
结论:
- 新的NSS座椅悬挂有效地提高了驾驶员的准效率和轨道车辆的舒适性.
- 将NSS集成到电视座椅悬挂中是技术上可行的,用于现实世界的应用.
- 这项研究提供了一种实际的解决方案,通过改善驾驶员人体工程学来提高电视战斗效率.
相关概念视频
01:24Normal and Tangetial Components: Problem Solving
575
Consider a man with a mass of 70 kg seated in a chair connected to a pin support through a member BC. If the man maintains an upright position, the task is to determine the horizontal and vertical reactions of the chair on the man when the member makes a 45° angle with the horizontal. At this moment, the man has a speed of 5 m/s, increasing at a rate of 1 m/s².
575
01:15Design of Transmission Shafts - Stress Analysis
712
Designing a transmission shaft requires a thorough understanding of the stresses induced by bending moments and torques, especially in systems where power is transferred through gears. These forces create force-couple systems at the centers of the shaft's cross-sections, leading to both transverse and torsional loading. Although shearing stresses from transverse loads are typically smaller than those from torques and are often overlooked, the significant normal stresses from these loads...
712
01:26PD Controller: Design
627
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
627
01:16Design of Transmission Shafts
745
The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by reconfiguring the...
745
01:14Stability of structures
489
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
489