机械专业毕业设计外文翻译--现代工程机械行业的技术进步

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1、1 中英文翻译 英文原文： Modern construction machinery industry of technical progress Large-size mechanical mining excavator is used widely in international and domestic engineering construction and mining performance, and its property defines the efficiency much.Now because the international market is opened

2、step step, how to promote the quality of excavator is the key that a factory reinforces its competing force. In our country， the designing elevation and production quality on excavator can not keep up with international advanced technology applying on excavator.Now the advanced technology has alread

3、y applied advanced designing method on excavator designing， such as electronic simulating theory， dynamic design， reliability design and so on.But in our country ,the most excavator design has still applied the traditional design method ,the modern design method has not began to be actually applied

4、.The prime display is that the capability of self-design is not enough and the basic work has not done perfectly especially the excavator kinetics . The construct of excavator is very complex and the multiple movers often work simultaneously.at the same time its working environment is very bad and t

5、he eternal load varies randomly.As a result ,when designing the new product of excavator ,in order to ensure the performance safety， the designer not only has the basic theory analysis on static load computing ,but also do necessary work about the kinetics of mechanism to qualify the dynamic reliabi

6、lity in the period of designing .Trough the kinetic analysis ,the load property of all the elements in excavator can be decided so as to design reliable product . From the 1980s of the 20th century to the beginning of this century. Chinese and foreign engineering machinery technology products come f

7、rom a maturity period of modernization along with a new technological revolution, Mechanical engineering products integrated technology to a new level. 2 Electronic technology, micro-computer, sensors, electro-hydraulic servo control system integration and transformation of the traditional mechanica

8、l engineering products, Computer-aided design and computer-aided manufacturing and computer-aided management of construction machinery and equipment manufacturing, IT network technology equipment, construction machinery sales and information transfer systems, thus enabling people to see a brand new

9、construction machinery industry. New construction machinery products in the efficiency and operational quality, environmental protection, performance and automation are many areas due to the past. and toward the further robotic and intelligent direction. 1、 operating principles of Innovation : groun

10、dbreaking new law with the high-frequency vibration With scientific and technological research in the development, engineering machinery operating theory is constantly innovating. Operating mechanical engineering principles, including the cutting of earth, broken ground on the screen geotextile mate

11、rial, mixed with heating, right mixture of paving, leveling and compaction, etc. These operations Jimmy initially bionics and Newtonian mechanics-based, Modern science and the development of engineering machinery operating principle of laying the foundation for innovation. For example, mechanical vi

12、bration and pulse jet, the photoelectric effect and thermal physics, the application of mechanical engineering to save resources and improve the quality of construction improve production efficiency, reliability and driving comfort and a degree of automation to create conditions. Excavators, bulldoz

13、ers, loaders, and other earthmoving machinery cutting groundbreaking project, we had no struggle milling, high-frequency vibration, Liquid gas jet method and porous ground breaking law. Groundbreaking use of the new operating principle of transformation to a bucket, can loosen the soil excavation fo

14、r the high-intensity rock, Under normal circumstances can reduce the unit cost of earthwork and improve production efficiency, and the soil near the building when substitute 3 bored-blasting method. Vibratory Roller is a mechanical vibration and have reached a sluggish vibration to operational effec

15、tiveness of the most powerful note. High-frequency vibration compaction technology is the application of modern dynamics in the mechanical engineering important research results, In vibratory roller simultaneously with the application of vibration isolation theory. 90s of the 20th century, there hav

16、e been a level of vibration (vibration) and vertical vibration directional vibration compaction method, and an AM-vibration and different from the harmonic vibration of chaotic vibration vibratory compaction operating principle, and the formation of the corresponding series of vibratory roller. Impa

17、ct Roller broke the existing traditional cylindrical roller structure, Use 3-5 edge with the pressure roller polygon dragged by a tractor, 2-3 times per second in order to impact on the ground. This has dramatic impact on the seismic wave propagation characteristics, the depth of compaction several

18、times with the RCC and incremental, 5m in the depths of the degree of compaction of up 90%-92%. Impact Roller is static shock, vibration and rub it smashes the comprehensive role for large fill, Collapse dry sand and soil filling the compaction. Asphalt paver Weiping equipment is operating principle

19、s of mechanical engineering innovation typical example. Fung plate diesel, liquefied petroleum gas or electric heating and 60 Hz frequency of vibration, and using infrared, ultrasonic or laser leveling, is a multidisciplinary high-tech applications. This leveling the technology can be applied to the

20、 ground plane, as amlodipine or fine leveling the slope. Transfer frequency mechanical vibration is also commonly used for drilling, stone crushing and sieving and Shen pulling piling works. The stone drying can use diesel, fuel oil and coal combustion of various fuels on the asphalt from the barrel, heating and asphalt mixture, stirring and insulation process is the full use of thermal theory of physics. Asphalt emulsion and some are modified chemical reaction physical specific application. 2、 drive innovation : universal hydraulic and electric drive