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基于双响应面法和BBD的车辆悬架系统稳健设计 被引量:3
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作者 程贤福 袁峻萍 +1 位作者 吴志强 槐创锋 《华东交通大学学报》 2012年第5期1-6,共6页
选用某种型号车辆的麦弗逊悬架系统,探讨悬架系统设计中同时考虑车辆的操纵稳定性和乘客的乘座舒适性问题,运用ADAMS软件对麦弗逊悬架进行建模并对其进行空间运动学定义。将悬架系统的结构尺寸视为可控因素,刚度和阻尼为不确定因素。通... 选用某种型号车辆的麦弗逊悬架系统,探讨悬架系统设计中同时考虑车辆的操纵稳定性和乘客的乘座舒适性问题,运用ADAMS软件对麦弗逊悬架进行建模并对其进行空间运动学定义。将悬架系统的结构尺寸视为可控因素,刚度和阻尼为不确定因素。通过对该悬架的一系列跳动分析和试验仿真得出对悬架的跳动特性影响较大的关键点,运用box-behnken design(BBD)试验方法安排试验,采用稳健设计中的双响应面法对车辆悬架系统进行稳健性分析。为车辆悬架系统的研究提供了一种新的方法。 展开更多
关键词 车辆悬架系统 稳健设计 ADAMS BBD 双响应面法
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军用车辆悬架系统预瞄控制现状与发展趋势研究 被引量:3
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作者 陈兵 尹忠俊 顾亮 《兵工自动化》 2008年第2期87-91,共5页
被动悬架系统的固有特性制约着军用车辆机动性的继续提升,为满足军用车辆不断增加的机动性战技指标,需要采用新的悬架形式。预瞄控制技术作为最有潜力的悬架控制技术受到悬架系统研究者的重视,实现预描控制悬架的关键技术包括:高速执行... 被动悬架系统的固有特性制约着军用车辆机动性的继续提升,为满足军用车辆不断增加的机动性战技指标,需要采用新的悬架形式。预瞄控制技术作为最有潜力的悬架控制技术受到悬架系统研究者的重视,实现预描控制悬架的关键技术包括:高速执行机构、传感器技术、路面辨识算法、节能问题、高性能微处理器、振动和控制理论、车辆动力学仿真技术。 展开更多
关键词 车辆悬架系统 预描控制 控制技术
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滞后非线性车辆悬架系统多频激励下的安全与复杂性分析 被引量:1
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作者 于威威 管克英 郭璇 《工程力学》 EI CSCD 北大核心 2007年第12期175-180,共6页
结合顺行平面Hamilton系统周期-能量关系和KAM理论,研究滞后非线性单自由度1/4车辆悬架系统多频激励下的受扰振动问题,给出两种初值条件下系统受扰固有周期运动的理论解析,证明了系统存在安全的拟周期状态。借助Melnikov函数讨论了系统... 结合顺行平面Hamilton系统周期-能量关系和KAM理论,研究滞后非线性单自由度1/4车辆悬架系统多频激励下的受扰振动问题,给出两种初值条件下系统受扰固有周期运动的理论解析,证明了系统存在安全的拟周期状态。借助Melnikov函数讨论了系统产生混沌的可能性及成因,分别对系统拟周期及混沌状态进行了数值模拟。为悬架系统的参数识别、稳定区域分析及优化设计提供理论依据。 展开更多
关键词 滞后非线性车辆悬架系统 安全与复杂性分析 周期-能量关系 KAM理论 MELNIKOV函数
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重型车辆半主动磁流变悬架系统动态逆自抗扰控制器设计
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作者 甄亮 冯永保 +2 位作者 李淑智 何祯鑫 韩小霞 《振动与冲击》 EI CSCD 北大核心 2024年第15期117-125,共9页
针对现有重型车辆半主动磁流变悬架系统控制方法受模型中存在非仿射问题和控制增益不确定等问题,提出了一种引入动态逆的线性自抗扰控制器的设计方法。设计了线性扩张状态观测器和动态逆控制器,线性扩张状态观测器估计系统的状态和总和... 针对现有重型车辆半主动磁流变悬架系统控制方法受模型中存在非仿射问题和控制增益不确定等问题,提出了一种引入动态逆的线性自抗扰控制器的设计方法。设计了线性扩张状态观测器和动态逆控制器,线性扩张状态观测器估计系统的状态和总和扰动,动态逆用以求解非仿射情况下的控制律。通过仿真试验表明,悬架系统所要求的性能指标明显改善,定量分析得到半主动动态逆线性自抗扰磁流变悬架的车体垂直加速度均方根值与被动悬架和半主动线性自抗扰磁流变悬架相比,分别下降了38.9%、17.8%,悬架动行程下降了7.8%、1.8%,车轮动变形下降了26.5%、11.5%,半主动动态逆线性自抗扰磁流变悬架性能明显优于被动悬架和半主动线性自抗扰磁流变悬架。因此,动态逆线性自抗扰控制技术既解决了重型车辆半主动磁流变悬架系统模型中存在的非仿射问题,同时也避免了经典线性自抗扰控制中控制增益标称值选取困难的问题,可以广泛应用于实际工程中。 展开更多
关键词 车辆半主动系统 磁流变阻尼器 动态逆自抗扰控制 非仿射系统
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车辆悬架系统及其性能评价综述 被引量:25
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作者 张俊红 洪刘生 +2 位作者 杨文钊 郭鹏 He Zhenpeng 《机械设计与研究》 CSCD 北大核心 2015年第6期147-153,共7页
悬架系统是汽车重要的组成部分,汽车悬架系统是影响汽车行驶平顺性、操纵稳定性和安全性的重要因素。因此,深入研究汽车悬架是提高现代汽车质量的重要举措。本研究综述了国内外悬架系统的研究现状,介绍了悬架系统在车辆中的应用,比较了... 悬架系统是汽车重要的组成部分,汽车悬架系统是影响汽车行驶平顺性、操纵稳定性和安全性的重要因素。因此,深入研究汽车悬架是提高现代汽车质量的重要举措。本研究综述了国内外悬架系统的研究现状,介绍了悬架系统在车辆中的应用,比较了几种悬架系统结构的优势与不足,讨论了悬架系统性能的评价方法与控制理论,指出了悬架系统的研究发展方向和趋势。 展开更多
关键词 车辆悬架系统 控制方法 性能评价 技术研究
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车辆悬架的半主动自适应模糊控制方法研究 被引量:2
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作者 陈龙 崔晓利 李德超 《兵工学报》 EI CAS CSCD 北大核心 2003年第4期544-547,共4页
本文采用自适应模糊方法设计车辆悬架半主动控制器。以模糊控制原理为基础 ,融合自适应方法 ,将模糊系统辨识和模糊控制结合起来 ,在模糊控制器内采用“软反馈” ,并对自适应模糊的控制规则进行修正。该法简化了运算 ,提高了半主动悬架... 本文采用自适应模糊方法设计车辆悬架半主动控制器。以模糊控制原理为基础 ,融合自适应方法 ,将模糊系统辨识和模糊控制结合起来 ,在模糊控制器内采用“软反馈” ,并对自适应模糊的控制规则进行修正。该法简化了运算 ,提高了半主动悬架控制的实时性 ,使系统的控制性能不断改善 ,达到最佳的控制效果 ,较好地解决了乘坐舒适性与驾驶安全性间的设计矛盾。 展开更多
关键词 车辆悬架系统 自适应模糊控制 模糊系统辨识 半主动 仿真
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车辆主动悬架系统LQR的多种群遗传优化算法 被引量:1
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作者 王东云 黄安穴 +1 位作者 平燕娜 刘新玉 《自动化与信息工程》 2021年第5期18-22,共5页
车辆主动悬架系统的线性二次型调节器(LQR)因结构简单、易于实现而得到广泛应用,但其目标函数最优参数确定的问题还没有公认的解决方法。为此,利用遗传算法的群体搜索特性,提出一种基于多种群遗传算法的LQR参数优化策略。仿真结果表明:... 车辆主动悬架系统的线性二次型调节器(LQR)因结构简单、易于实现而得到广泛应用,但其目标函数最优参数确定的问题还没有公认的解决方法。为此,利用遗传算法的群体搜索特性,提出一种基于多种群遗传算法的LQR参数优化策略。仿真结果表明:与传统遗传算法优化的LQR及无优化LQR相比,多种群遗传算法在悬架动行程、轮胎动位移和车身垂向加速度3个指标的平均性能上,分别提高了2.26%和33.55%,增加汽车的运行平顺性、操纵稳定性和乘坐舒适性。 展开更多
关键词 车辆主动系统 线性二次型调节器 多种群遗传算法
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基于Matlab的越野汽车非线性悬架系统仿真 被引量:6
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作者 舒明霏 陈思忠 《计算机仿真》 CSCD 2006年第12期216-219,共4页
建立了考虑刚度和阻尼非线性的两自由度越野汽车悬架系统的仿真模型。用谐波叠加法构成的路面不平度作为路面激励,并利用半波正弦信号模拟越野汽车通过半圆形路障时的激励,在这些激励下,用数值方法获得了车身加速度,车轮动载,悬架动挠... 建立了考虑刚度和阻尼非线性的两自由度越野汽车悬架系统的仿真模型。用谐波叠加法构成的路面不平度作为路面激励,并利用半波正弦信号模拟越野汽车通过半圆形路障时的激励,在这些激励下,用数值方法获得了车身加速度,车轮动载,悬架动挠度的响应以及冲击作用下车身加速度的模拟响应。根据随机振动理论谱估计方法,由输入输出信号获得非线性悬架系统传递函数的数值解。以此为基础分析了非线性悬架系统在不同行驶工况下的表现出的传递特性的差异。 展开更多
关键词 车辆悬架系统 非线性 数值仿真 路面不平度
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基于磁流变阻尼器的汽车半主动悬架的神经模糊控制 被引量:3
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作者 周燕 《南京理工大学学报》 EI CAS CSCD 北大核心 2008年第6期715-718,共4页
为了抑制由路面不平引起的车辆振动,该文采用磁流变(MR)阻尼器和神经模糊控制算法实现对车辆悬架系统的半主动控制,并在四分之一汽车的两自由度模型上进行了仿真计算。采用的神经模糊控制器能通过反馈的车身加速度,经过计算输出一个恰... 为了抑制由路面不平引起的车辆振动,该文采用磁流变(MR)阻尼器和神经模糊控制算法实现对车辆悬架系统的半主动控制,并在四分之一汽车的两自由度模型上进行了仿真计算。采用的神经模糊控制器能通过反馈的车身加速度,经过计算输出一个恰当的电压到MR阻尼器实时连续地改变其阻尼特性,实现对车辆悬架系统半主动振动控制。仿真结果表明:和被动悬架相比,基于MR阻尼器和神经模糊控制算法的半主动悬架系统对由路面不平引起的车辆振动有明显的控制效果,具有良好的应用前景。 展开更多
关键词 磁流变阻尼器 半主动控制 车辆悬架系统 神经模糊控制算法
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协方差分析描述函数法的通用化数值算法
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作者 王汉平 柳洋鑫 张宝振 《北京理工大学学报》 EI CAS CSCD 北大核心 2024年第5期439-446,共8页
协方差分析描述函数法(covariance analysis describing function technique,CADET)在处理系统的随机响应问题上具有求解迅速、仿真精度高等优点.但对于复杂系统,其理论推导过程、求解系统解析响应方程较为复杂繁琐.为进一步推广CADET... 协方差分析描述函数法(covariance analysis describing function technique,CADET)在处理系统的随机响应问题上具有求解迅速、仿真精度高等优点.但对于复杂系统,其理论推导过程、求解系统解析响应方程较为复杂繁琐.为进一步推广CADET的应用,依托高斯–埃尔米特积分法,提出了一种通用化的CADET数值算法.作为算法验证,以车辆行驶过程中的随机振动为例,建立了几种不同非线性悬架车辆的二自由度动力学模型,并将CADET通用化数值算法与传统CADET算法及蒙特卡罗法进行了对比分析.仿真结果表明,CADET的通用化数值算法可以达到满足应用要求的计算精度,这验证了所提数值算法的有效性,且具有更强的泛化应用于复杂非线性动力系统的价值. 展开更多
关键词 车辆悬架系统 协方差分析描述函数法 随机振动 数值算法 非线性系统
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减振器的性能判断及故障分析
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作者 李志春 《农机使用与维修》 2013年第5期24-24,共1页
减振器是机动车辆悬架系统的一个重要组成部分。减振器并联在车架与钢板弹簧之间,用于衰减车架和车身的振动,提高车辆行驶的平顺性。目前,广泛使用的是双向作用筒式减振器。
关键词 筒式减振器 故障分析 性能 车辆悬架系统 组成部分 钢板弹簧 车辆行驶 双向作用
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Reliability-based robust multi-obj ective optimization of a 5-DOF vehicle vibration model subjected to random road profiles 被引量:2
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作者 Abolfazl Khalkhali Morteza Sarmadi Sina Yousefi 《Journal of Central South University》 SCIE EI CAS CSCD 2017年第1期104-113,共10页
Ride and handling are two paramount factors in design and development of vehicle suspension systems. Conflicting trends in ride and handling characteristics propel engineers toward employing multi-objective optimizati... Ride and handling are two paramount factors in design and development of vehicle suspension systems. Conflicting trends in ride and handling characteristics propel engineers toward employing multi-objective optimization methods capable of providing the best trade-off designs compromising both criteria simultaneously. Although many studies have been performed on multi-objective optimization of vehicle suspension system, only a few of them have used probabilistic approaches considering effects of uncertainties in the design. However, it has been proved that optimum point obtained from deterministic optimization without taking into account the effects of uncertainties may lead to high-risk points instead of optimum ones. In this work, reliability-based robust multi-objective optimization of a 5 degree of freedom (5-DOF) vehicle suspension system is performed using method of non-dominated sorting genetic algorithm-II (NSGA-II) in conjunction with Monte Carlo simulation (MCS) to obtain best designs considering both comfort and handling. Road profile is modeled as a random function using power spectral density (PSD) which is in better accordance with reality. To accommodate the robust approach, the variance of all objective functions is also considered to be minimized. Also, to take into account the reliability criterion, a reliability-based constraint is considered in the optimization. A deterministic optimization has also been performed to compare the results with probabilistic study and some other deterministic studies in the literature. In addition, sensitivity analysis has been performed to reveal the effects of different design variables on objective functions. To introduce the best trade-off points from the obtained Pareto fronts, TOPSIS method has been employed. Results show that optimum design point obtained from probabilistic optimization in this work provides better performance while demonstrating very good reliability and robustness. However, other optimum points from deterministic optimizations violate the regarded constraints in the presence of uncertainties. 展开更多
关键词 probabilistic optimization vehicle suspension deterministic optimization RIDE handling genetic algorithm
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Optimization of suspension system of off-road vehicle for vehicle performance improvement 被引量:24
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作者 M. Mahmoodi-Kaleibar I. Javanshir +2 位作者 K. Asadi A. Afkar A. Paykani 《Journal of Central South University》 SCIE EI CAS 2013年第4期902-910,共9页
Vehicle suspension design includes a number of compromises to provide good leveling of stability and ride comfort. Optimization of off-road vehicle suspension system is one of the most effective methods, which could c... Vehicle suspension design includes a number of compromises to provide good leveling of stability and ride comfort. Optimization of off-road vehicle suspension system is one of the most effective methods, which could considerably enhance the vehicle stability and controllability. In this work, a comprehensive optimization of an off-read vehicle suspension system model was carried out using software ADAMS. The geometric parameters of suspension system were optimized using genetic algorithm (GA) in a way that ride comfort, handling and stability of vehicle were improved. The results of optimized suspension system and variations of geometric parameters due to road roughness and different steering angles were presented in ADAMS and the results of optimized and conventional suspension systems during various driving maneuvers were compared. The simulation results indicate that the camber angle variations decrease by the optimized suspension system, resulting in improved handling and ride comfort characteristics. 展开更多
关键词 optimized suspension system STABILITY ride comfort VEHICLE double wishbone suspension system model
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Optimal Seat Suspension Design Using Genetic Algorithms 被引量:3
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作者 Wael Abbas Ossama B. Abouelatta +2 位作者 Magdy El-Azab Mamdouh El-Saidy Adel A. Megahed 《Journal of Mechanics Engineering and Automation》 2011年第1期44-52,共9页
The linear seat suspension is considered due to the low cost consideration therefore, the optimal linear seat suspension design method can be used for this purpose. In this paper, the design of a passive vehicle seat ... The linear seat suspension is considered due to the low cost consideration therefore, the optimal linear seat suspension design method can be used for this purpose. In this paper, the design of a passive vehicle seat suspension system was handled in the framework of linear optimization. The variance of the dynamic load resulting from the vibrating vehicle operating at a constant speed was used as the performance measure of a suspension system. Using 4-DOF human body model developed by Abbas et al., with linear seat suspension and coupled with half car model. A genetic algorithm is applied to solve the linear optimization problem. The optimal design parameters of the seat suspension systems obtained are kse = 3 012.5 N/m and cse = 1 210.4 N.s/m, respectively. 展开更多
关键词 Biodynamic response seated human models SIMULATION genetic algorithms.
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Neuron PI control for semi-active suspension system of tracked vehicle 被引量:2
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作者 曾谊晖 刘少军 鄂加强 《Journal of Central South University》 SCIE EI CAS 2011年第2期444-450,共7页
A neuron proportion integration (PI) control strategy for semi-active suspension system of tracked vehicle was proposed based on its unique structure and the multiple and complex environment of the driving traffic. An... A neuron proportion integration (PI) control strategy for semi-active suspension system of tracked vehicle was proposed based on its unique structure and the multiple and complex environment of the driving traffic. An adaptive genetic algorithm is used to optimize the parameters of the neuron PI controller. The simulation result of the neuron PI control for semi-active suspension system of tracked vehicle indicates that the vertical amplitude,pitch angle and vertical acceleration of the vehicle are well controlled. The root mean square (RMS) of the vertical amplitude decreases by 37.2%,and 45.2% for the pitch angle,38.6% for the vertical acceleration. The research of neuron PI control experiment for the semi-active suspension system of the tracked vehicle model mining in benthal indicates that the RMS of the weight acceleration vibrating along the vertical direction decreases by 29.5%,the power spectral density resonance peak of the acceleration of the car body decreases by 23.8%. 展开更多
关键词 tracked vehicle magneto rheological damper semi-active suspension preview technology neuron PI control
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Dynamic Resonant Frequency Bands of Suspension System of Vehicles with Varying Speeds Based on Time⁃Frequency Spectrum
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作者 ZHANG Buyun ZENG Falin TAN Chin-An 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2021年第2期333-343,共11页
The dynamic responses of suspension system of a vehicle travelling at varying speeds are generally nonstationary random processes,and the non-stationary random analysis has become an important and complex problem in v... The dynamic responses of suspension system of a vehicle travelling at varying speeds are generally nonstationary random processes,and the non-stationary random analysis has become an important and complex problem in vehicle ride dynamics in the past few years.This paper proposes a new concept,called dynamic frequency domain(DFD),based on the fact that the human body holds different sensitivities to vibrations at different frequencies,and applies this concept to the dynamic assessment on non-stationary vehicles.The study mainly includes two parts,the first is the input numerical calculation of the front and the rear wheels,and the second is the dynamical response analysis of suspension system subjected to non-stationary random excitations.Precise time integration method is used to obtain the vertical acceleration of suspension barycenter and the pitching angular acceleration,both root mean square(RMS)values of which are illustrated in different accelerating cases.The results show that RMS values of non-stationary random excitations are functions of time and increase as the speed increases at the same time.The DFD of vertical acceleration is finally analyzed using time-frequency analysis technique,and the conclusion is obviously that the DFD has a trend to the low frequency region,which would be significant reference for active suspension design under complex driving conditions. 展开更多
关键词 non-stationary random process suspension system vehicle modeling dynamical frequency domain(DFD) ride comfort
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Influences of the Suspension Parameters on the Vehicle Suspension Performance for a Terrain Vehicle
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作者 Shpetim Lajqi Stanislav Pehan +2 位作者 Naser Lajqi Bashkim Baxhaku Besim Ymeri 《Journal of Mechanics Engineering and Automation》 2012年第9期550-554,共5页
This paper describes an effective methodology for evaluation of the suspension parameters intended to be used for a terrain vehicle. The objective of this approach is to make quick analyses of the sensitivity of the v... This paper describes an effective methodology for evaluation of the suspension parameters intended to be used for a terrain vehicle. The objective of this approach is to make quick analyses of the sensitivity of the vehicle suspension parameters. For the purpose of developing such a methodology, a mathematical modeling of a quarter vehicles suspension system is developed. Sensitive analysis of the suspension parameters is performed by employing the standard deviation of the vehicle body acceleration, dynamic tire load, and suspension travel. Sensitivity analysis results have shown that the spring stiffness, damping coefficient, tire stiffness and sprung mass have substantial influence on the ride comfort and road holding, while un-sprung mass on the other side has much lower impact in performance of the vehicle suspension system. 展开更多
关键词 Terrain vehicle suspension parameters ride comfort road holding suspension travel.
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