某车载多屏显控台的结构设计与人机工程设计

Structure Design and Ergonomic Design of a Vehicle Multi-screen Display Console

随着移动式指挥信息系统向智能化、集成化快速发展,作为系统的重要基础设施,显控台需在有限的方舱空间内安装更多的显示设备,以满足快速数据处理和多人交互的功能需求。针对某车载指挥信息系统的要求,提出一种琴式结构的多屏一体化显控台方案,整体尺寸为1690 mm (长)×790 mm (深)×1370 mm (高),可安装6台19.5 in显示屏及附属设备。根据结构设计方案,建立力学模型,结合理论分析,运用有限元仿真软件对显控台进行模态分析,算出前6阶固有频率和振型;并通过施加实际工作环境下振动条件,进行随机振动分析,得到垂向、横向、纵向3个方向的振动变形和应力,经计算,显控台的应力和变形小于22.1 MPa和0.15 mm的概率为99.73%。最后结合人机工程设计准则,对其进行人机工效合理性分析。综合结构设计理论、仿真分析和人机工程分析,验证所设计的多屏显控台能够满足系统功能、结构强度及人机工程要求。

With the rapid development of mobile command information system to intelligence and integration,as an important infrastructure of the system,display console needs to install more display devices in the limited shelter space to meet the functional requirements of rapid data processing and multi-person interaction.A multi-screen integrated display console with a piano structure is proposed for the requirements of a certain vehicle command information system,with an overall size of 1690 mm(L)×790 mm(D)×1370 mm(H),capable of installing six 19.5 inch display screens and accessory equipment.According to the structual design scheme of the system,the mechanical model is established,and the modal analysis of the display console is carried out by the finite element simulation software combined with the theoretical analysis to calculate the first six natural frequencies and vibration modes,and by applying vibration conditions in the actual working environment,random vibration analysis is conducted to obtain vibration deformation and stress in the vertical,horizontal,and longitudinal directions.After calculation,the probability of the stress and deformation of the display console being less than 22.1 MPa and 0.15 mm is 99.73%.Finally,ergonomic design of the console structure is evaluated based on the methods of human-machine engineering.By integrating structural design theory,simulation analysis and ergonomic analysis,it is verified that the designed multi-screen vehicle display console can meet the requirements of system functionality,structural strength and ergonomic requirements.