能帮忙翻译下吗?谢谢啦!
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发布时间：2022-04-24 02:18
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热心网友
时间：2023-08-31 22:30
Internal combustion engine is the world's most extensive application of the thermal power plant, since 1680 the French designed the first gas engine, the internal combustion engine both in structure and in performance than previously made substantial progress. In today's society, almost all modes of transport have to do the core of the internal combustion engine power sources [1]. Scientific and technological progress not only promote the development of the internal combustion engine, its performance has put forward higher requirements - low-pollution fuel combustion efficiency, reliability and the use of the work of the rability and longer life expectancy, etc. [2]. This requires improving the internal combustion engine design and optimize the structure to rece the working process in the active force. Crank linkage of the design is reasonable will directly affect the internal combustion engine power, emissions, reliability and service life, and other important performance [3]. At present cars are still ever-engine piston-based. In Reciprocating Engine, the internal combustion engine crank linkage is the transfer of power and movement, through which the piston reciprocating linear motion into rotary movement of the crankshaft output power. Therefore, the internal combustion engine crank linkage is the main force components, crank role in the linkage of the main movement is determined by its quality of the inertial force and role in the Pistons force on the gas, along with those of the crank angle Different changes in a stable condition, turn the crank every week or two weeks for a change cycle. In fact, the internal combustion engine condition is constantly changing, especially as a vehicle driving force, in particular. Therefore, the role of the crank linkage on the edge, with the ever-changing conditions and changes in the [4]. Link in the process of movement of the gas main under pressure and the Detroit group reciprocating inertia force generated by alternating load, in addition, the connecting rod in the course of the campaign swing speed and have a moment of inertia, but also to link smaller bear numerical The moment. If the link in alternating load of fracture, it will lead to vicious destruction Therefore, the entire internal combustion engine or even scrapped if the link stiffness will be less than the crank linkage of a negative impact. For example: link in the crank plane bending to skew the Pistons in the cylinder, causing the cylinder and piston, and crank pin bearing the partial grinding, Detroit group and the inter-cylinder gas leakage, channeling oil [5]. Clearly, the reliability of direct linkage of the impact on the work of the internal combustion engine reliability. As everyone knows, the link is an important engine parts, the Pistons will play the role of the reciprocating movement into the rotating crankshaft. And the quality of its merits directly related to the overall engine performance. In the course of their work, the linkage of the more complex: on the one hand to bear the pressure and gas reciprocating movement of the inertia generated by the impact of alternating tension and compression loads, while a horizontal linkage swing inertia force, resulting in bending under alternating Load. Because of their longer, so there is sufficient demand link the strength and stiffness [6]. To meet the requirements of the premise, to minimize their own quality, to rece the inertia force, and ensure the smooth functioning of the engine, recing the work the noise and vibration, and therefore the importance of clear material selection. To ensure reliability, link needs to meet the following requirements: (l) structure is simple, compact size, rable and reliable, (2) to ensure adequate strength and stiffness of the premise, as far as possible to rece quality, to rece the inertia force; ( 3) minimize the length of the internal combustion engine to rece the overall size and total weight (4) the size of the first bearing reliable, good wear resistance, (5) connecting rod bolts fatigue, reliable connection: (6) easy to manufacture, cost Low. Chuan is e to linkage of cases, is also moving parts, therefore, can not rely solely on increasing the size of linkage to improve strength [7].
Linkage to the crank visual kinematics and dynamics of the development-crank linkage Selection, kinematics and mechanical analysis, and link major components of a computer-aided design, verification and calculation of the System, a more intuitive understanding of crank clear linkage in the course of the operation of the force, and facilitate accurate calculation, and the mapping of Analysis curve of the internal combustion engine further study the balance and vibration, so the transformation of the internal combustion engine booster A more practical application of [8].
