厂拌热再生设备楼体框架静动态特性分析与优化设计
发布时间：2018-07-27 19:28
【摘要】：沥青搅拌设备是道路养护专用设备之一，自80年代引进国外先进技术以来，国产沥青混合料搅拌设备在拌合效率、加热效率以及计量控制方面都有了很大提升。发展至今，沥青搅拌设备在技术上已经比较成熟，然而总体结构设计却没有受到普遍关注。 如今用户在选择设备时不仅注重产品性能，轻巧美观的外形设计越来越受到用户的追捧。并且随着产品的发展，小型化设备的产生也对结构设计提出了更高的要求，然而国内通常沿用传统设计方法，设计出的结构呈现出大、笨、粗的特点，不仅不具美观性而且浪费了钢材、增加了成本。在激烈的市场竞争环境下，采用一种先进科学的设计方法势在必行。 根据国情，间歇式搅拌设备是我国搅拌设备的主流，本文以某公司生产的HZS150型框架结构为研究对象,采用国际上通用的大型有限元程序ANSYS进行计算,考虑构件间的空间相互作用,建立有限元模型,重点对以下几个方面进行了研究： （1）根据HZS150楼体框架结构实际受力情况，对其进行了静力学分析，得出再生设备在空载和正常工作时，HZS150楼梯框架的应力分布及变形情况，结果验证了：框架结构的强度与刚度均满足设计要求。 （2）对HZS150楼体框架结构进行模态分析，得到前四阶固有频率及振型，观察振型得框架结构符合高层结构的振动特性。 （3）在模态分析的基础上进行谐响应分析，确定了“峰值”响应对应的频率，明确了主振方向，从而分析出再生装置与框架结构不存在共振现象。 （4）建立HZS150型楼梯框架结构参数化模型，对其进行优化设计，使其在满足刚度及强度条件下减轻了质量，验证了优化方法的可行性。
[Abstract]:Asphalt mixing equipment is one of the special equipment for road maintenance. Since the introduction of foreign advanced technology in 1980s, the mixing efficiency, heating efficiency and metering control of domestic asphalt mixture mixing equipment have been greatly improved. Up to now, asphalt mixing equipment has been technically mature, but the overall structure design has not received widespread attention. Nowadays, users not only pay attention to product performance when choosing equipment, but also attract more and more attention from users for their light and beautiful appearance design. And with the development of products, the production of miniaturization equipment also put forward higher requirements for structural design. However, the traditional design method is usually used in our country, and the designed structure presents the characteristics of large, stupid and coarse. Not only is it not beautiful but also a waste of steel, increasing the cost. In the fierce market competition environment, it is imperative to adopt an advanced scientific design method. According to the national conditions, batch mixing equipment is the mainstream of the mixing equipment in China. This paper takes the HZS150 frame structure produced by a company as the research object and uses the large finite element program ANSYS, which is widely used in the world, to carry out the calculation. Considering the spatial interaction between members, the finite element model is established, and the following aspects are emphatically studied: (1) according to the actual stress situation of HZS150 building frame structure, the static analysis is carried out. The stress distribution and deformation of the HZS150 staircase frame are obtained when the regenerator is under no load and normal operation. The results show that the strength and stiffness of the frame structure meet the design requirements. (2) the modal analysis of the frame structure of the HZS150 building is carried out. The first four natural frequencies and modes are obtained, and the vibration characteristics of the frame structure are observed. (3) on the basis of modal analysis, harmonic response analysis is carried out, and the corresponding frequency of "peak" response is determined. The main vibration direction is determined and the resonance between the regenerator and the frame structure is analyzed. (4) the parameterized model of the HZS150 staircase frame structure is established and the optimum design is carried out. The quality is reduced under the condition of stiffness and strength, and the feasibility of the optimization method is verified.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U415.528
本文编号：2148907
[Abstract]:Asphalt mixing equipment is one of the special equipment for road maintenance. Since the introduction of foreign advanced technology in 1980s, the mixing efficiency, heating efficiency and metering control of domestic asphalt mixture mixing equipment have been greatly improved. Up to now, asphalt mixing equipment has been technically mature, but the overall structure design has not received widespread attention. Nowadays, users not only pay attention to product performance when choosing equipment, but also attract more and more attention from users for their light and beautiful appearance design. And with the development of products, the production of miniaturization equipment also put forward higher requirements for structural design. However, the traditional design method is usually used in our country, and the designed structure presents the characteristics of large, stupid and coarse. Not only is it not beautiful but also a waste of steel, increasing the cost. In the fierce market competition environment, it is imperative to adopt an advanced scientific design method. According to the national conditions, batch mixing equipment is the mainstream of the mixing equipment in China. This paper takes the HZS150 frame structure produced by a company as the research object and uses the large finite element program ANSYS, which is widely used in the world, to carry out the calculation. Considering the spatial interaction between members, the finite element model is established, and the following aspects are emphatically studied: (1) according to the actual stress situation of HZS150 building frame structure, the static analysis is carried out. The stress distribution and deformation of the HZS150 staircase frame are obtained when the regenerator is under no load and normal operation. The results show that the strength and stiffness of the frame structure meet the design requirements. (2) the modal analysis of the frame structure of the HZS150 building is carried out. The first four natural frequencies and modes are obtained, and the vibration characteristics of the frame structure are observed. (3) on the basis of modal analysis, harmonic response analysis is carried out, and the corresponding frequency of "peak" response is determined. The main vibration direction is determined and the resonance between the regenerator and the frame structure is analyzed. (4) the parameterized model of the HZS150 staircase frame structure is established and the optimum design is carried out. The quality is reduced under the condition of stiffness and strength, and the feasibility of the optimization method is verified.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U415.528
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