摘要
为了探索离合器滑摩过程中负载特性对由柴油机、齿轮箱离合器、负载等组成的动力传动系统转速的影响规律,本文利用GT-Power仿真平台,根据某船用动力传动系统实际结构建立了仿真模型。仿真研究了离合器滑摩过程中不同传动系统转动惯量、摩擦阻力对动力传动系统转速的影响规律,并将柴油机的转速降作为转速变化的参考指标,对滑摩过程中系统转速变化的相关性及多因素的交互作用进行了分析。结果表明:随传动系统转动惯量增加,系统转速波动范围增大、滞后性增强,最大转速降达200 r/min,最长滑摩时间为1.27 s;随传动系统摩擦阻力增加,系统转速降增加、超调量减小、滞后增强,最大转速降达189 r/min,最长滑摩时间为1.15 s;在不同接排转速下,离合器滑摩过程中传动系统转动惯量、摩擦阻力与动力传动系统转速变化的相关性均较大,相关系数接近于1,交互作用较明显。
To explore the effects of load characteristics on the speed of a powertrain system under the clutch frictional sliding process,a highly accurate simulation model of a powertrain system was established with the engine simulation software GT-Power according to the actual structure of a marine powertrain system.The influencing factors of rotational inertia and frictional resistance of transmission systems on the speed of the powertrain system under clutch frictional sliding process were simulated and studied.Taking the speed drop of diesel engine as a reference index for speed change,the correlation between speed change and the effect of multiple-factor interaction were researched.The results show that the fluctuation range and hysteresis of the system speed increases with rotational inertia,where the maximum speed drop is 200 r/min,and the maximum frictional sliding time is 1.27 s.Furthermore,with an increase in frictional resistance,the speed drop of system speed increase,the overshoot of system speed reduces,and the hysteresis of system enhances.Here,the maximum speed drop is 189 r/min,and the maximum frictional sliding time is 1.15 s.The correlations between the rotational inertia and frictional resistance of the powertrain system and its speed are large under clutch frictional sliding process at different steady speeds,and the effect of the interaction is obvious when the correlation coefficient is close to 1.
作者
李文辉
袁志国
刘长铖
LI Wenhui;YUAN Zhiguo;LIU Changcheng(College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2018年第8期1296-1301,共6页
Journal of Harbin Engineering University
基金
工业和信息化部高技术船舶资助项目(GK1030900006)
关键词
离合器
负载特性
动力传动系统
滑摩过程
转速仿真
GT-Power仿真平台
柴油机
clutch
load characteristics
powertrain system
frictional sliding process
speed simulation
simulation platform of engine GT-Power
diesel engine
