Eccentric Loading Condition Analysis of 1MN Dead Weight Force Standard Machine

2014 ◽  
Vol 1077 ◽  
pp. 149-153
Author(s):  
Li Juan Yu ◽  
Gao Fei Li ◽  
Tao Lei ◽  
Xiao Bo Chen
Keyword(s):  
Computer Technology ◽  
Rapid Development ◽  
Power Source ◽  
Numerical Control ◽  
Strength Measurement ◽  
Dead Weight ◽  
National Economic ◽  
National Economic Development ◽  
Weight Force ◽  
Machine Strength

With the development of science and technology , the position of the strength measurement[1] in national economic development is more and more important, In recent years, along with the computer technology, electronic technology and the development of numerical control technology, force standard machine also obtained the rapid development[2-6],dead weight force standard machine strength measuring accuracy is the highest power source device by far, in the process of weight loading, considering the axial load affect the performance of the whole machine and in order to guarantee the machine safe and reliable, it is necessary to eccentric loading conditions for mechanical properties analysis.

Research on the Sports Economy Effection in National Economic Development

2014 ◽  
Vol 556-562 ◽  
pp. 6519-6521 ◽  
Author(s):  
Chun Hua Jiang ◽  
Feng Liang
Keyword(s):  
Economic Development ◽  
National Economy ◽  
Rapid Development ◽  
Developed Countries ◽  
Economic Activities ◽  
Initial Stage ◽  
National Economic ◽  
Social And Economic Development ◽  
National Economic Development

With the rapid development of our country, the statue of sports economy is becoming more and more important in the national economy. The sports economy refers to the sports related economic activities, it is the product of social and economic development to a certain period. Nowadays, the sport economy in our country is till at its initial stage comparing to some developed countries. In this paper, we analyze the sports economy impact in the national economic development. The relationships between sports economy and national economic development have been deeply researched. Finally, some conclusions are proposed in this paper.

scholarly journals The possibility of cutting shapes on CNC machine tools

2019 ◽  
Vol 290 ◽  
pp. 02008
Author(s):  
Piotr Paszta
Keyword(s):  
Computer Technology ◽  
Machine Tools ◽  
Rapid Development ◽  
Numerical Control ◽  
Cnc Machine Tools ◽  
Milling Machine ◽  
Cnc Machine ◽  
Processing Industry ◽  
Different Dimensions ◽  
Parametric Programs

The development of computer technology has enabled it to be introduced to machine tools. The widespread use of CNC machine tools has resulted in a rapid development of the processing industry. So far, obtaining the profile of the curve has required the use of a complicated machine tool kinematic design, or it has been impossible to implement it otherwise than by copying. The numerical control of machine tools is based on the mathematical description of motion. This provides the capability to form curves of the same shape but with different dimensions using parametric programs. The article describes the practical use of parameters in machining on an FYS milling machine with Mitsubishi control.

Discussion about the Influence of the Computer Information Technology on the Logistics Management

2014 ◽  
Vol 1079-1080 ◽  
pp. 1158-1161
Author(s):  
Hui Dang ◽  
Jun Hua Yan ◽  
Yan Lai
Keyword(s):  
Information Technology ◽  
Computer Network ◽  
Rapid Development ◽  
Information Management System ◽  
Logistics Management ◽  
Modern Logistics ◽  
Logistics Industry ◽  
National Economic ◽  
Simple Processing ◽  
National Economic Development

To a certain extent, modern logistics as a system engineering can also be said as the supply chain services, and the process mainly includes all goods transportation and warehousing, distribution, allocation and simple processing. Strengthening the modern logistics management can not only effectively promote the improvement of production and marketing, but also increase the competitiveness of the enterprise. With the rapid development of information technology and computer network technology, computer information management system is applied to logistics management which greatly promotes the rapid development of logistics industry, and makes it play a more and more important role in national economic development in China. This paper mainly overviews the development of computer information technology and logistics management, and on this basis analyzes the influence of the computer information technology on the logistics management.

Recent Patents on the Angular Contact Ball Bearing of High-Speed Motorized Spindle

2020 ◽  
Vol 13 ◽  
Author(s):  
Yudong Bao ◽  
Linkai Wu ◽  
Yanling Zhao ◽  
Chengyi Pan
Keyword(s):  
High Speed ◽  
Ball Bearing ◽  
Rapid Development ◽  
Ceramic Materials ◽  
Development Trend ◽  
Numerical Control ◽  
Angular Contact Ball Bearing ◽  
Practical Applications ◽  
High Speed Cutting ◽  
Advantages And Disadvantages

Background:: Angular contact ball bearings are the most popular bearing type used in the high speed spindle for machining centers, The performance of the bearing directly affects the machining efficiency of the machine tool, Obtaining a higher value is the direction of its research and development. Objective:: By analyzing the research achievements and patents of electric spindle angular contact bearings, summarizing the development trend provides a reference for the development of electric spindle bearings. Methods:: Through the analysis of the relevant technology of the electric spindle angular contact ball bearing, the advantages and disadvantages of the angular contact ball bearing are introduced, and the research results are combined with the patent analysis. Results:: With the rapid development of high-speed cutting and numerical control technology and the needs of practical applications, the spindle requires higher and higher speeds for bearings. In order to meet the requirements of use, it is necessary to improve the bearing performance by optimizing the structure size and improving the lubrication conditions. Meanwhile, reasonable processing and assembly methods will also have a beneficial effect on bearing performance. Conclusion:: With the continuous deepening of bearing technology research and the use of new structures and ceramic materials has made the bearing's limit speed repeatedly reach new highs. The future development trend of high-speed bearings for electric spindles is environmental protection, intelligence, high speed, high precision and long life.

The Significance of Regional Studies for the Elaboration of National Economic History

1960 ◽  
Vol 20 (4) ◽  
pp. 588-596 ◽  
Author(s):  
Henry W. Broude
Keyword(s):  
Economic Development ◽  
Economic History ◽  
Regional Differentiation ◽  
Regional Studies ◽  
National Economic ◽  
Methodological Problems ◽  
National Economic Development ◽  
Relationship Of ◽  
The Relationship ◽  
Point Of Departure

The purpose of this paper is to serve as a point of departure for discussion of the relationship of regional differentiation and growth to general economic development. In addition to touching on methodological problems, I hope to establish two specific points: (a) that the needs of economic history call for particular perspectives in delimiting regions, and (b) that study of regional interaction can provide insights in an understanding of national economic development.

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