液力缓速器换热器设计与分析.doc
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液力缓速器换热器设计与分析,2.13万字自己原创的毕业论文，已经通过校内系统检测，重复率低，仅在本站独家出售，大家放心下载使用摘 要 近年来，随着我国道路交通事业发展，道路交通状况和车辆通行能力有了极大的改善，公路货运车辆的装载量和公路客车的需求量都越来越大，其行驶里程越来越长，各类车辆的性能也在不断提升，平均车速也越来...
内容介绍
此文档由会员 淘宝大梦 发布
液力缓速器换热器设计与分析
2.13万字
自己原创的毕业论文，已经通过校内系统检测，重复率低，仅在本站独家出售，大家放心下载使用
摘 要
近年来，随着我国道路交通事业发展，道路交通状况和车辆通行能力有了极大的改善，公路货运车辆的装载量和公路客车的需求量都越来越大，其行驶里程越来越长，各类车辆的性能也在不断提升，平均车速也越来越高。尽笯@盗舅∮玫姆⒍β试谔岣撸盗拘谐抵贫鞯闹贫茉谑澜绶段诨姑挥薪洗笸黄疲捎谑芸占涑叽绲南拗疲渖⑷饶芰τ邢薜仍颍谄捣敝贫蛘叱中贫奶跫禄岢鱿指呶禄郏纱瞬思菔辉薄⒊嗽薄⑿腥恕⒊盗竞突跷锏陌踩侍狻�
因此，为保证此类车辆具有良好的制动性能，除行车制动器外，还应装备辅助制动器，将车轮制动器的负荷进行分流，使车轮制动器温度控制在安全范围内。减速制动器作为车辆的辅助制动系统部件，它通过作用于传动系统而减轻原车制动系统的负荷，使车辆均匀减速，以提高车辆制动系统的可靠性，延长制动系统的使用寿命，并能由此而大幅度降低车辆使用成本。其中液力减速制动器使用寿命长，制动功率大，控制品质好，适宜连续制动，具有广泛的应用前景。在国外，对车辆用液力缓速器己有相当深入的研究和广泛应用，但是在国内还处于理论研究，样机开发阶段。
本文的研究目的就是在广泛收集国内外相关资料的条件下，主要以某型号的液力缓速器进行研究，并使用 MATLAB 软件对装有液力缓速器的热交换器进行性能仿真分析。主要包括以下几方面的内容：
（1）分析各种辅助制动装置的优缺点，并对液力缓速器工作原理和特点， 进行了详细分析；详细考察了国内外液力缓速器研究、应用现状、法规情况的基础上，综述了板翅式换热器的应用状况、换热器传热模型研究现状和发展趋势，确定了课题目标及研究方向。
（2）本文以板翅式换热器传热理论为基础，建立了热交换系统的数学模型，并用 MATLAB 软件中的 SIMULINK 进行了仿真分析。
关键词：液力缓速器、板翅式换热器、辅助制动、热交换、仿真分析
Abstract
In recent years, along with our country road traffic development, road traffic conditions and vehicle traffic capacity has greatly improved, and the loading capacity of highway freight vehicle and highway passenger demand is bigger and bigger, its range is more and more long, all kinds of performance of the vehicle are also rising, average speed is becoming more and more high.Although engine power in improving vehicle chooses, but driving vehicle brakes brake efficiency around the world have not bigger breakthrough, due to the restrictions on the size of the space, its cooling ability is limited, the frequent braking or continuous braking will appear under the conditions of high temperature accumulation, creating drivers, crew, passengers, vehicles and goods safety.
Therefore, to ensure that the vehicle has good braking performance, in addition to the vehicle brake, should also be equipped with auxiliary brake, the load of the wheel brake, make the wheel brake temperature control within the scope of the security.Deceleration brake as an auxiliary braking system of the vehicle parts, it is by acting on transmission system and reduce the original car brake system load, uniform vehicle deceleration and to improve the reliability of vehicle braking system, extend the service life of brake system, and can therefore reduce the cost of vehicle use.With long service life of hydraulic brake deceleration and braking power is big, good control quality, suitable for continuous braking, has wide application prospect.Abroad, for vehicle use own in-depth study of hydraulic retarder and widely used, but in China is still in the theoretical research, prototype development.
The research purpose of this article is under the condition of extensive collection of related data at home and abroad, mainly to study a type of hydraulic retarder, and the use of MATLAB software for the heat exchanger is equipped with hydraulic retarder performance simulation analysis.Content mainly includes the following several aspects:
(1) Analysis of the advantages and disadvantages of all kinds of auxiliary braking device, and the working principle and characteristics of the hydraulic retarder are analyzed in detail.Was investigated in detail at home and abroad research, the hydraulic retarder, laws and regulations, on the basis of the status quo of the application are reviewed in this paper, the application of plate-fin heat exchanger heat exchanger heat transfer model research status and development trend, the topic goal and the research direction is determined.
(2) In this paper, on the basis of plate-fin heat exchanger heat transfer theory, establishes the mathematical model of heat exchange system, using SIMULINK in MATLAB software simulation analysis.
Key words: Hydraulic retarder, Auxiliary brake, Simulation, heat exchanger
目 录
摘要 1
Abstract 2
第一章 绪论 6
1.1.汽车缓速器的类型和分类 7
1.1.1.发动机排气缓速 7
1.1.2.电涡流缓速 8
1.1.3.液力缓速 9
1.2.液力缓速器的类型 10
1.3.液力缓速器国内外发展概况 11
1.3.1.国外缓速器概况 11
1.3.2.国内缓速器发展概况 11
1.4.课题研究意义及本文的主要研究内容 12
1.4.1.课题研究意义 12
1.4.2. 本文主要研究内容 13
1.5..
2.13万字
自己原创的毕业论文，已经通过校内系统检测，重复率低，仅在本站独家出售，大家放心下载使用
摘 要
近年来，随着我国道路交通事业发展，道路交通状况和车辆通行能力有了极大的改善，公路货运车辆的装载量和公路客车的需求量都越来越大，其行驶里程越来越长，各类车辆的性能也在不断提升，平均车速也越来越高。尽笯@盗舅∮玫姆⒍β试谔岣撸盗拘谐抵贫鞯闹贫茉谑澜绶段诨姑挥薪洗笸黄疲捎谑芸占涑叽绲南拗疲渖⑷饶芰τ邢薜仍颍谄捣敝贫蛘叱中贫奶跫禄岢鱿指呶禄郏纱瞬思菔辉薄⒊嗽薄⑿腥恕⒊盗竞突跷锏陌踩侍狻�
因此，为保证此类车辆具有良好的制动性能，除行车制动器外，还应装备辅助制动器，将车轮制动器的负荷进行分流，使车轮制动器温度控制在安全范围内。减速制动器作为车辆的辅助制动系统部件，它通过作用于传动系统而减轻原车制动系统的负荷，使车辆均匀减速，以提高车辆制动系统的可靠性，延长制动系统的使用寿命，并能由此而大幅度降低车辆使用成本。其中液力减速制动器使用寿命长，制动功率大，控制品质好，适宜连续制动，具有广泛的应用前景。在国外，对车辆用液力缓速器己有相当深入的研究和广泛应用，但是在国内还处于理论研究，样机开发阶段。
本文的研究目的就是在广泛收集国内外相关资料的条件下，主要以某型号的液力缓速器进行研究，并使用 MATLAB 软件对装有液力缓速器的热交换器进行性能仿真分析。主要包括以下几方面的内容：
（1）分析各种辅助制动装置的优缺点，并对液力缓速器工作原理和特点， 进行了详细分析；详细考察了国内外液力缓速器研究、应用现状、法规情况的基础上，综述了板翅式换热器的应用状况、换热器传热模型研究现状和发展趋势，确定了课题目标及研究方向。
（2）本文以板翅式换热器传热理论为基础，建立了热交换系统的数学模型，并用 MATLAB 软件中的 SIMULINK 进行了仿真分析。
关键词：液力缓速器、板翅式换热器、辅助制动、热交换、仿真分析
Abstract
In recent years, along with our country road traffic development, road traffic conditions and vehicle traffic capacity has greatly improved, and the loading capacity of highway freight vehicle and highway passenger demand is bigger and bigger, its range is more and more long, all kinds of performance of the vehicle are also rising, average speed is becoming more and more high.Although engine power in improving vehicle chooses, but driving vehicle brakes brake efficiency around the world have not bigger breakthrough, due to the restrictions on the size of the space, its cooling ability is limited, the frequent braking or continuous braking will appear under the conditions of high temperature accumulation, creating drivers, crew, passengers, vehicles and goods safety.
Therefore, to ensure that the vehicle has good braking performance, in addition to the vehicle brake, should also be equipped with auxiliary brake, the load of the wheel brake, make the wheel brake temperature control within the scope of the security.Deceleration brake as an auxiliary braking system of the vehicle parts, it is by acting on transmission system and reduce the original car brake system load, uniform vehicle deceleration and to improve the reliability of vehicle braking system, extend the service life of brake system, and can therefore reduce the cost of vehicle use.With long service life of hydraulic brake deceleration and braking power is big, good control quality, suitable for continuous braking, has wide application prospect.Abroad, for vehicle use own in-depth study of hydraulic retarder and widely used, but in China is still in the theoretical research, prototype development.
The research purpose of this article is under the condition of extensive collection of related data at home and abroad, mainly to study a type of hydraulic retarder, and the use of MATLAB software for the heat exchanger is equipped with hydraulic retarder performance simulation analysis.Content mainly includes the following several aspects:
(1) Analysis of the advantages and disadvantages of all kinds of auxiliary braking device, and the working principle and characteristics of the hydraulic retarder are analyzed in detail.Was investigated in detail at home and abroad research, the hydraulic retarder, laws and regulations, on the basis of the status quo of the application are reviewed in this paper, the application of plate-fin heat exchanger heat exchanger heat transfer model research status and development trend, the topic goal and the research direction is determined.
(2) In this paper, on the basis of plate-fin heat exchanger heat transfer theory, establishes the mathematical model of heat exchange system, using SIMULINK in MATLAB software simulation analysis.
Key words: Hydraulic retarder, Auxiliary brake, Simulation, heat exchanger
目 录
摘要 1
Abstract 2
第一章 绪论 6
1.1.汽车缓速器的类型和分类 7
1.1.1.发动机排气缓速 7
1.1.2.电涡流缓速 8
1.1.3.液力缓速 9
1.2.液力缓速器的类型 10
1.3.液力缓速器国内外发展概况 11
1.3.1.国外缓速器概况 11
1.3.2.国内缓速器发展概况 11
1.4.课题研究意义及本文的主要研究内容 12
1.4.1.课题研究意义 12
1.4.2. 本文主要研究内容 13
1.5..
