论文部分内容阅读
一、引论以往,设计和制造建筑机械的准则是:在使用条件之下不致于遭受损坏,把强度作为重要的指标。为此,尽量取大的安全系数,导致机械设计得不必要的笨重,不仅增加了机械的自重,而且造成很大的经济损失。这种设计不能认为是合理的设计。现代工业的发展,节省能源的问题突出。要求机械设计不仅考虑到静态强度,更重要的是考虑其动态特性。尽可能地使机械产品的动态
I. INTRODUCTION In the past, the guideline for the design and manufacture of construction machinery was that it should not be damaged under the conditions of use, and strength should be taken as an important indicator. To this end, try to take a large safety factor, resulting in mechanical design unnecessary bulky, not only increased the mechanical self-respect, but also caused great economic losses. This design can not be considered a reasonable design. The development of modern industry, the issue of energy conservation prominent. Mechanical design is required not only to account for static strength, but more importantly to consider its dynamic behavior. Make mechanical products as dynamic as possible