论文部分内容阅读
在过去的20年间,由于对各种零部件的结构改进、新技术的不断开发利用以及先进的燃油喷射系统和增压系统的研制,使高性能柴油机取得了很大进展。但是,出于经济方面的原因,要求同一机型的发动机既要适用于各种用途又要适用于更严格的环境条件要求;此外,还对污染物质和噪声排放作出了限制。尽管如此,人们仍期望零部件有更长的使用寿命。本文指出,在设计、分析和试验三者之间,各学科的合作是取得成功的关键,而在这种合作当中,相关学科,尤其是飞速发展的电子学方面的成就,是绝对需要的。可以模拟各种使用条件和外部环境的柴油机及其辅助设备空气动力学模型、热力学模型和机械模型,以及能可靠和快速进行模型试验的智能控制装置和测量技术,被认为是这种学科间合作的最重要的因素。只有通过这一途径,才能开发高速柴油机巨大的发展潜力,才能在激烈的国际竞争中立于不败之地。
In the past 20 years, great progress has been made in high-performance diesel engines due to the structural improvements of various components, the continuous development and utilization of new technologies, and the development of advanced fuel injection and pressurization systems. However, for economic reasons, it is required that the same type of engine be used for a variety of purposes as well as for more stringent environmental conditions. In addition, pollutants and noise emissions are limited. In spite of this, one still expects components to have a longer life. This article points out that in the design, analysis and testing of the three, the cooperation of various disciplines is the key to success, and in this cooperation, the relevant disciplines, especially the rapid development of electronic achievements, is absolutely necessary. Aerodynamic, thermodynamic and mechanical models of diesel engines and their ancillary equipment that simulate various conditions of use and external environment, as well as intelligent control devices and measurement techniques that enable reliable and rapid model testing are considered as interdisciplinary collaborations The most important factor. Only by this means can we develop the huge potential for development of high-speed diesel engines in order to be invincible in the fierce international competition.