论文部分内容阅读
本文探讨了一种关于机械平均压力或机械效率的较为精确的近似测定法及其应用的可能性,同时对各种测定法进行了分析,并给这些方法以表述近似特性确定了一组参数。为了克服近似性,探讨了对摩擦平均压力起主要影响作用的诸参数,即发动机的热交换、动力参数和机械参数。根据作者查明有如下三个参数,即发动机工作过程的平均压力,热负荷和转速。通过在一台由外源拖动的试验机上所进行的广泛测量和对结果进行整理分析之后,拟定了一种更为精确的近似测定法。
In this paper, we discuss a more accurate approximation of mechanical average pressure or mechanical efficiency and its possible application. In the meantime, we analyze various measurement methods and determine a set of parameters based on approximate expressions. In order to overcome the approximation, the parameters that play a major role in the frictional average pressure are discussed, namely, engine heat exchange, dynamic parameters and mechanical parameters. According to the author identified the following three parameters, the average pressure of the engine working process, heat load and speed. After a wide range of measurements on a testing machine driven by external sources and the collation of the results, a more accurate approximation was developed.