Of Railway Vehicle person chairs interface digital design and its ride comfort simulation
|School||Central South University|
|Course||Vehicle Operation Engineering|
|Keywords||Train seat Ride comfort Parametric Design Geometric matching Modeling and Simulation|
The pursuit of high-quality ride comfort is the inevitable development of railway passenger demand. Railway Passenger ride comfort is research to ensure that the use of state-of-the-art analysis of the theoretical model and computer simulation technology, the key aspects of the quality of train operation. However, the the static ride comfort studies on railway passenger cars, is still lack of differences consider the characteristics of the human body sitting comfort quantitative analysis methods and evaluation model. In addition, the train seat shape structure design and cabin seating arrangement and other issues have not been effectively addressed. To this end, the support of the CAD software platform of the above problems to carry out in-depth research, specific content is as follows: In order to meet the different percentile sitting geometric matching the needs of the human body - seat, geometric modeling and feature modeling techniques to establish the realistic shape and size more accurate three-dimensional sitting human body model. On this basis, through the secondary development of CAD and dimension-driven technology to achieve different human percentile seated human body model of different genders 3D parametric modeling. For the seated human body - geometric matching of seat comfort evaluation is proposed and implemented a program driven to achieve - chair \In support of the method, the automatic matching of the posture of the body - the seat of three-dimensional CAD model and body posture joint angles can be automatically extracted. On this basis, the proposed analysis method based gray comprehensive evaluation comfortable train seat geometry analysis and evaluation of theoretical models, the evaluation model for quantitative analysis of different train seat geometry comfort. According to the the human spine lumbar curvature arc and the principle of human physiology Comfort, human dimensions and seat structure size to establish organic links, parametric design of a new type of train seats. The application of ergonomic principles to carry out a study of the methods and principles of the train seating arrangement, structural safety requirements based on size and passenger bus passenger area, designed to train seating arrangement mathematical model and layout process. On this basis, in the three-dimensional CAD environment developer software implementation of the intelligent arrangement of the parameters of the train seat. On the basis of the above work, a train seat comfort simulation analysis software is developed based on SolidWorks API. In the software structure of the virtual environment, human parametric modeling, train seat geometric analysis comfort of train seat parameterized design, and seat smart layout work to complete the three-dimensional posture.