[雙語(yǔ)翻譯]機(jī)床設(shè)計(jì)外文翻譯--重型機(jī)床結(jié)構(gòu)設(shè)計(jì)方法

1、2000 英文單詞， 英文單詞，1 萬(wàn)英文字符，中文 萬(wàn)英文字符，中文 2850 字文獻(xiàn)出處： 文獻(xiàn)出處：Kovalov V, Antonenko Y, Da?i? P. Method of structural design of heavy machine tools[J]. Procedia Technology, 2016, 22: 146-152.Method of Structural Design of Heavy Mac

2、hine ToolsViktor Kovalov, Yana Antonenko, Predrag Da?isAbstractThis paper presents a method of arrangement the frames of heavy lathes with dispersed forces along the coordinate axes of the loads that act on the machine w

3、hile it is running. Mathematical models of large bearing systems, taking into account typical and boundary loads are developed. The field trials of the action of frames are conducted. We analyzed the movement of the fram

4、e on the coordinate axes due to its loading. A solid modeling and research of support of heavy lathe using a package Solid Works Simulation are conducted. The perspective ways to further improve the accuracy of machine t

5、ools are proposed.Keywords: accuracy; rigidity; support; frame of support; a technological system; modeling.1. IntroductionModern trends in mechanical engineering, the transition to the use of automated machine tools hav

6、e requirements to increase accuracy of the size and quality of the machined surfaces of machine parts and devices. This is due to the appearance of new more precision machines and instruments. It is no accident since the

7、 40s of the 20th century every 20 years the accuracy of the technique increases on the order. In the design and operation of technological processing systems there is a continuously increasing demand to enhance their acc

8、uracy characteristics.Currently, as a result of theoretical and experimental research of a large number of scientists accumulated considerable material on technological quality assurance processing that allows to create

9、mathematical models of management of process machining [l].However, the efficiency of these models does not always give a satisfactory result, since they insufficiently take into account the impact of the complex multi-a

10、xis elastic system of machine for static and dynamic stiffness of technological system, therefore, the quality of treatment. In addition, the absence of dependencies describing the effect of elastic multi-axis machine to

11、ol system to stiffness of technological system and the accuracy does not allow uniquely identify the range of parameters that provide the status of the machine accuracy in operation. Analysis of design schemes based on t

12、he foregoing concept shows that the stiffness of the multi-axis elastic machine tool system is variable and depends on the ratio Pz and Py components of the cutting force, relative displacement of the elements of the sys

13、tem of stiffness on the so-called main axes of the rigidity of the system, the position of the main axes of rigidity in the time and other factors [2]. In other words, considering the technological system based on synerg

14、etic theory of self-organizing systems, we can say that the rigidity of the machine, as element of technological system, determining the accuracy state machine obeys to the principle of self-organization in space of the

15、working area of the processing detail in real-time. In this regard, research and description of the influence of the multiaxis elastic machine system on the stiffness of the technological system and quality of treatment

16、to be used in mathematical models of the management of machining process, and for determining the machine normalized parameters of stiffness which are subject to ensure in process of design is an actual scientific challe

17、nge. The purpose of work is improving the quality of the work pieces on the basis of the prediction accuracy of the machine in real time, taking into account the part of its hardness distribution in the strength by metho

18、d of finite elements with package of tools Cosmos Works were made [l2-l4]. A method for linking the trails of heavy lathes with a system of forces distributed over the axes of loads that act on the machine during its ope

19、ration. Heavy modeling lathe bed with capacity of lOO tons is produced to determine the stiffness of the support system under the action of stresses arising in the processing of parts. To summarize the model had to simpl

20、ify the calculation of the parameters solid model and simulate the base frame in parts. The loading frame of support held in two places: at the junction of the two sections and at a distance of l2OO mm from the edge of t

21、he section. Fig. l shows an embodiment of the loading frame at the junction of the two sections [l5-l7].Fig l. The finite element mesh.Fig. 2. Analysis of the movement of the frame on the coordinate axes (along X and Z)

22、as a result of the loading frame at the junction of the two sectionsThe analysis of the displacement of the axes was made on Fig. 2. Fig. 3 shows a diagram of the loading bed of a support at a distance of 1200 mm from th