《XX大学机械学院本科毕业设计外文翻译格式》由会员分享，可在线阅读，更多相关《XX大学机械学院本科毕业设计外文翻译格式（28页珍藏版）》请在金锄头文库上搜索。
1、吉林大学机械学院本科毕业设计外文翻译格式本科生毕业设计论文翻译资料中文题目： 配合新一代液力变矩器的柴油动力线的一些特性 英文题目：some properties of a diesel driveline with hydrodynamic torque converters of thelastest generation学生姓名： 学 号： 班 级： 专 业：机械工程及自动化指导教师： Some properties of a diesel drive line with hydrodynamic torque converters of the latest generationAbs
2、tractDynamic properties of a drive line with a controlled Diesel engine, hydrodynamic transmission mechanism, additional gearing and a loading-working machine producing common monoharmonic loading are investigated. Solution of the dynamic problem is based on phenomenological experimental data: drivi
3、ng torque-speed characteristic in the part of the prime mover and so-called external static characteristic in the hydrotransmission part. The non-linear task is solved by a modified harmonic balance method that was described in preceding publications by the author. Keywords: Machine drive line; Cont
4、rolled Diesel drive; Hydrodynamic torque converter; Working machine; Periodic loading; Stationary dynamic state Nomenclature and abbreviationsa, b - -Coulomb and viscous non-dimensional friction losses Ai, Bi - -coefficients in mathematical expression of torque-speed characteristic i, im -kinematic
5、transmission, supplementary gearing transmission ratio I, Iz -mean reduced moment of inertia in driving and loading part k, kK -tangent slopes of (i) and K(i) curves respectively K -moment transmission M -Diesel-engine moment MD(,z) -controlled torque-speed driving characteristic MDmax(), MDmin() -t
6、orque-speed characteristic for maximal and minimal fuel supply M1, (), M2, () -pump loading moment and turbine driving moment MT1, MT2 -friction loss moment in driving and loading part Mz, Mza -mean value and amplitude of loading moment -hydrodynamic converter characteristic radius t -time T, TD-Wat
7、t regulator and Diesel-engine time constant u, z -gas lever and regulator displacement w -common dynamic variable -regulator structural parameter -regulator damping ratio -coefficient of rotation moment -loading angular velocity , -index denoting mean value and periodical component -hydraulic medium
8、 density -rotation angle 1, (), 2 -pump and turbine angular velocity DM -Diesel-engineG, GD -additional and Watt-regulator gearing HdPT -hydrodynamic power transmission IJ -InjectorLM -loading mechanism (working machine) P, R, T-pump, reactor, turbineArticle OutlineNomenclature 1. Introduction 2. Ma
9、thematical model of the system 3. Stationary dynamic solution at monoharmonic loading4. Results evaluation and concluding remarks 1. IntroductionDynamic properties of a drive line (actuating unit) consisting of a controlled Diesel engine (DM), hydrodynamic power transmission system (HdPT), additiona
10、l gearing (G) and a loading mechanism (LM) or working machine are investigated. The working machine loads the prime mover and the transmissions with a prescribed moment. A simple idealised schematic layout of the complete system is given in Fig. 1. The considered Diesel engine is a standard producti
11、on: ZETOR 8002.1 controlled by a mechanical (Watts) or electronic regulator RD governing fuel injector IJ. In the place of the hydrodynamic power transmission there are gradually applied hydrodynamic torque converters of the latest generation that have been projected and tested in WUSAM (Research an
12、d Projecting Institute of Machines and Mechanisms), j.s.c. Zvolen, Slovakia. These converters represent a three component assembly composed of a rotational pump (P), turbine (T) and a reactor (R) that may revolve in one direction as a free wheel. Advantage of these converters is the fact that their
13、external dimensions and the dimensions of their individual components are identical and they may be mutually changed and arbitrarily combined in order to reach demanded properties. They differ only by internal configuration and blade geometry. According to 1 up to now more than 70 various types have
14、 been experimentally tested and from them the ones have been chosen that optimally fulfilled required properties. The mechanical system under consideration represents a sophisticated energy transfer chain from a sourceprime mover to working mechanism. Because every real drive is of finite power, any
15、 periodic loading always evokes vibrations of all the dynamic variables even though we suppose all the connecting shafts and gearings rigid and backlash free. The influence of dynamic loading on the prime mover may be just controlled by a suitable choice of the torque converter. Fig. 1.Schematic layout of the Diesel drive line.In the paper influence of cons
