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1、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： 吉林大学机械科学与工程学院2Some properties of a diesel drive line with hydrodynamic torque converters of the latest generationAbstract
2、Dynamic 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: driving to
3、rque-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; Controlle
4、d 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 trans
5、mission, 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() -to
6、rque-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 吉林大学本科毕业论文外文翻译3
7、t -time T, TD-Watt 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
8、-hydraulic medium 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.
9、Introduction 2. Mathematical 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
10、 (HdPT), additional 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
11、 standard production: 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 吉林大学机械科学与工程学院4
12、and tested in WUSAM (Research and 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 co
13、nverters is the fact that their 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
14、 more than 70 various types have 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 re
15、al drive is of finite power, any 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 constant and periodic loading on time course of all the dynamic variables of the system (and par
