无避让立体车库机械系统设计与稳定性研究

发布时间：2018-04-03 07:30

本文选题：无避让立体车库　切入点：机械系统设计　出处：《河南工业大学》2015年硕士论文

【摘要】：近年来,随着经济的增长,汽车数量越来越多。汽车数量的增长在给人们出行带来便利的同时也随之而来的增加了静态交通问题。城市土地寸土寸金,土地稀缺日益增长的停车需求之间的矛盾愈演愈烈,停车场地向空间发展是解决这一矛盾的必要途径。目前我国立体车库种类多样,功能各异,但均存在存取车时间长,需倒车入库,存取车过程繁琐等一系列问题,无法满足在上下班高峰期人们便捷取车的需求。所以寻求一种高效快捷存取车辆的装置是解决以上问题的关键。本文通对比国内不同类型立体车库的优缺点,设计了一种无需排队等候、上下层无需避让的立体车库,此处称之为无避让立体车库。本文参考相关设计规范,根据存取车功能需求以及汽车相关尺寸参数确定了无避让立体车库的总体方案及总体尺寸。同时从受力分析、电机减速器选型以及传动系统设计等方面对无避让立体车库机械系统中的提升系统和回转系统进行全面设计。另外借助ABAQUS有限元软件对无避让立体车库的主要承重结构件进行了校核。无避让立体车库采用的是立柱悬臂结构,立柱和载车板是主要受力构件,单侧受力是该立体车库的软肋。另外,无避让立体车库常应用于室外,在我国不同地域的不同地区,气候差异较为明显。《GB50009-2012建筑结构荷载规范》附表E中表E.5给出了全国各城市的基本雪压和风压值。东北北部和新疆北部降雪量较大,东南沿海和黄淮海沿岸风力较大。为了适应更加广阔的市场,无避让立体车库的抗风、抗雪以及抗风雪共同作用的能力是必须解决的关键问题。本文通过对稳定性基本原理与设计方法的研究,定义了无避让立体车库的“使用极限工作状态”。首先利用CATIA三维软件建立无避让立体车库的有限元模型,将该模型导入ABAQUS中,通过不同工况下雪载荷和风载荷的加载,得出在相应工况下无避让立体车库的应力云图以及位移云图。将最大位移与“使用极限工作状态”进行对比,从而确定无避让立体车库在不同工况下的稳定性状况。最后通过加载最大风级和最大雪载共同作用,验证了无避让立体车库在极限工况下的稳定性。
[Abstract]:In recent years, with the economic growth, more and more cars.The increase in the number of cars not only brings convenience for people to travel, but also increases static traffic problems.The contradiction between the urban land and the increasing demand for parking is becoming more and more serious. The development of parking space is the necessary way to solve this contradiction.At present, there are many kinds of stereoscopic garages in our country with different functions, but they all have a series of problems, such as long time to store vehicles, the need to reverse the vehicles into storage, the tedious process of storing and storing vehicles, and so on, which can not meet the demand of people to pick up cars conveniently during rush hour.Therefore, the key to solve the above problem is to seek an efficient and fast access device for vehicles.This paper compares the advantages and disadvantages of different types of stereoscopic garages in China and designs a kind of stereoscopic garages which do not need to wait in line and need not be sheltered from the upper and lower floors.In this paper, referring to the relevant design specifications, the overall scheme and the overall size of the no-shelter stereoscopic garage are determined according to the functional requirements of the access vehicle and the relevant dimensions of the vehicle.At the same time, the lifting system and the rotary system in the mechanical system without avoiding are designed in the aspects of force analysis, type selection of motor reducer and transmission system design.In addition, ABAQUS finite element software is used to check the main load-bearing structure.The column cantilever structure is adopted in the no-shelter stereoscopic garage, the column and the car-carrying plate are the main force components, and the unilateral force is the soft rib of the stereoscopic garage.In addition, the spatial garage without shelter is often used outdoors, and the climate difference is obvious in different regions of China. The basic snow pressure and wind pressure of each city in China are given in Table E.5 in schedule E of < GB50009-2012 Code for Building structure load ".The northern part of Northeast China and the north of Xinjiang have a large amount of snowfall, and the southeast coast and the coast of Huanghuai Sea have stronger winds.In order to adapt to the wider market, the ability to resist wind, snow and snow is the key problem that must be solved.Based on the study of the basic principle and design method of stability, this paper defines the "operating limit state" of a no-shelter stereoscopic garage.Firstly, the finite element model of three-dimensional garage without shelter is established by using CATIA software. The model is introduced into ABAQUS, and the snow load and wind load are loaded under different working conditions.The stress cloud diagram and displacement cloud diagram of the garage without avoiding are obtained under the corresponding working conditions.The maximum displacement is compared with the "use limit working state" to determine the stability of the solid garage with no shelter under different working conditions.Finally, the stability of the no-shelter stereoscopic garage under the limit condition is verified by the combined action of the maximum wind magnitude and the maximum snow load.
【学位授予单位】：河南工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.71

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