汽车驱动桥壳的有限元分析和优化外文文献翻译.docx

1、汽车驱动桥壳的有限元分析和优化外文文献翻译文献出处： Paul D. FE Analysis and Optimization of Vehicle Drive Axle Housing J. Journal of Engineering Computers & Applied Sciences, 2015, 12(3): 21-35.原文FE Analysis and Optimization of Vehicle Drive Axle HousingPaul DAbstractAs a main part of cars, drive axle housing supports the a

2、utomobile chassis and the carriage, passes weights to the wheels. Meanwhile, the vertical force, traction, braking force acting on the drive wheels are also passed to the suspension and the frame though the axle housing; therefore, it is playing as both loading part and transmission part. Because th

3、e axle is used frequently under complex conditions, their quality and property directly affect the overall performance of the vehicle and its used life, so the drive axle housing must have characteristics of sufficient strength, stiffness and good dynamic. Currently the traditional method has been d

4、ifficult to meet the requirements of drive axle housing, while because of its many advantages; the finite element method becomes an effective way to solve the problem.Keywords: Drive axle housing, Leaf spring, Collaborative Simulation1 IntroductionAs one of the main parts of truck, drive axle shell

5、to play the role of a support vehicle load, and can transfer load to the wheels, at the same time, the driving wheel on the vertical force and tangential force, braking force and the traction), lateral force is through it passed to the frame and carriage, it play the role of a bearing load and trans

6、mit forces. In the car, drive axle shell under high load, especially when the car loaded with high speed in the uneven road surface, will produce a big road impact load of the wheels, under the action of strong impact load, the dynamic behavior of the overall car will be from the drive axle shell pa

7、rts inside and outside the influence of the vibration of the incentive to produce, may even make the bridge shell produces a lot of dynamic stress, lead to crack, fracture, even seriously affect the safety of the vehicle. In automobile structure, due to the use of high frequency, drive axle shell ha

8、s higher failure rate, however, the overall performance of the car and the useful life is influenced by its quality and performance directly, this requires that it has enough strength, stiffness, and has good dynamic characteristics, in turn, to ensure that the cars stability.2 The research statusDu

9、e to the development of computer technology, expanding the application range of the finite element method (fem), especially in the 1970 s, some famous auto companies began to apply the finite element method to the design of auto parts, raised a hot wave of finite element method (fem) in the automobi

10、le structure design, such as: ford using Nastran finite element analysis software, the finite element model with shell element definition unit, to the static analysis of car body, get the stress nephogram, high stress area is determined, and carry on the improvement of the corresponding structure. B

11、y the end of the 80 s, Japan Isuzu companies have all aspects of the finite element method is applied to every part of body design. And has a well-known Japanese company by using the finite element method is proposed for 2.5 times full of axle load of drive axle housing structure analysis standard.T

12、he famous automobile company in the conventional finite element is comparatively mature application field, its research focus has shifted to nonlinear analysis, transient response analysis, impact analysis of temperature field analysis and optimization design and analysis, etc. Due to the finite ele

13、ment analysis software such as ANSYS was introduced, and is widely applied in engineering practice, in recent years, many automobile company and scientific research institutions joint of drive axle shell finite element analysis.2.1 Static structure analysis The automobile drive axle bridge shell und

14、er the condition of static finite element analysis under typical conditions was described, and the static structure analysis of drive axle shell, the analysis of drive axle shell has certain reference value for design improvement, but the literature is just to simplify the structure of drive axle ho

15、using for the static analysis, the results of the analysis has certain error. Dump truck rear axle shell finite element stress calculation compare the original model and the reinforcement model in various typical working conditions of the static structure analysis, fully embodies the advantage of fi

16、nite element method (fem) and quick, economic and environmental protection, provides the basis for the drive axle housing structure improvement design;ZL50 wheel loader type welding drive axle shell vibration modal analysis in various typical working conditions are introduced, the static structural

17、analysis of the drive axle shell, got the stress contours and strain contours, and make evaluation on its structure and performance, but the object of study is just drive axle shell, evaluation of the lack of integrity. Automobile drive axle housing based on ANSYS finite element analysis of stated t

18、he application of finite element method, ANSYS software of finite element analysis was carried out on the drive axle housing, and the analysis results compared with the traditional theoretical calculation results, shows many advantages of the finite element method; automobile drive axle bridge shell

19、 finite element analysis shows that the national standards of drive axle shell, the strength, stiffness, and the different thickness of the drive axle shell finite element analysis, the results show that the thickness of several bridge shell meet the evaluation indexes.2.2 Dynamic analysisAutomobile

20、 drive axle shell finite element dynamic is analysis of ANSYS software for static structural analysis and modal analysis. Through the modal analysis, obtained the low order natural frequency and vibration mode, and the experimental results are basically the same. Drive axle integral finite element d

21、ynamic simulation describes the test data is only on the surface of the drive axle shell vibration, dynamic analysis method is the data on the drive axle shell unit within the node, make up the lack of experiment, and provides research foundation for vibration noise. Mini drive axle shell structural

22、 strength and modal analysis by ANSYS modal analysis was carried out on the drive axle housing, and obtained the low-order modal frequencies and their corresponding vibration mode, analyzes the results, drive axle shell dynamic design standard.2.3 Fatigue analysisDrive axle shell in order to make us

23、e of the finite element software static structure analysis, modal analysis and the analysis of the fatigue strength, fatigue life of drive axle shell distribution, and the service life of the most dangerous point value; Automobile drive axle shell under the action of random load fatigue life forecas

24、t drive axle shell to make use of Nastran static structural analysis and fatigue analysis, the fatigue life of drive axle shell distribution, and the service life of the most dangerous point value, and compared with the bench fatigue test data, the data is consistent. Drive axle shells to make use o

25、f the finite element method of fatigue analysis, drive axle shell, the distribution of fatigue life and the life value of the most dangerous point, provided the basis for its improvement.2.4 Optimization analysisVehicle drive axle shell dynamic optimization design based on parametric drive axle hous

26、ing for the reliability optimization, on the basis of this, adhere to the principle of overall lightweight, local reinforcement, continue size optimization, the results not only lightweight effect is obvious, and guarantee its mechanical performance. Drive axle bridge shell finite element analysis a

27、nd structure optimization by using finite element software for structural analysis, and put forward improvement on the basis of the results of the analysis, again carries on the analysis, comprehensive evaluation of the results of the analysis, after the effectiveness of the proposed improvement mea

28、sures. To sum up, in recent years, with the development of the computer, the finite element technology gradually mature, expanding its application field, application of finite element method (fem) to drive axle design, can effectively shorten the development cycle, reduce production cost, and improv

29、e competitiveness.3 Finite element modelsCreate a bridge shell entity model is a priority for the finite element analysis on it. Because its structure is complex, irregular surface is more, directly using ANSYS Workbenchs own entity modeling module of drive axle shell model created there is a big di

30、fficulty, therefore, in this paper, with the aid of Solid works software strong modeling ability, create physical model of drive axle housing. When establishing finite element model, which requires it to reflect the important mechanical properties of the model itself, and USES the appropriate unit t

31、ypes, try to decrease the number of units, in order to make sure to get a precise finite element calculation results as well as shorten the calculation time, so to simplify some of the minor, the dangerous structures, while retaining the original structure of drive axle shell body, make its can stil

32、l reflect the actual structure of the main characteristics and mechanical characteristics, in order to meet these requirements, set up the model, the model is correct, geometric elements, on the basis of relevant and mechanical properties of the model under the premise of do not change, its structur

33、e is necessary. For building solid model is made up of drive axle housing, leaf spring, plate spring and assembly model is composed of main reducer shell. Drive axle housing is stamping steel welded integral, including: bridge shell body and axle tube, bridge shell body made of steel plate stamping welding.4 Bridge shell finite eleme