长圆柱形气囊隔振器的承载特性

气囊隔振器作为一种高效的减振元件,其安装与使用受承载特性的直接影响。对于本文研究的长圆柱形气囊隔振器,其承载特性主要与囊内气体压力有关。将长圆柱形气囊隔振器简化为圆柱与圆环两部分,通过分析得到气囊的有效面积表达式；利用虚位移原理,推导出气囊容积表达式；结合气体多变方程,建立了气囊承载特性数学模型。设计了长圆柱形气囊隔振器的承载特性试验,并对比了气囊承载特性的试验曲线和理论曲线,结果表明：两者的吻合度较高,本文研究理论可为长圆柱形气囊设计、使用提供依据。

Study on load bearing characteristics of long cylindrical airbag isolator

The airbag isolator is an efficient damping element , its installation and use is directly affected by the load bearing characteristics. For the long cylindrical airbag isolator studied in this paper, its bearing characteristics are mainly related to the gas pressure inside the bladder. The long cylindrical airbag isolator is simplified into two parts, a cylinder and a ring, and the effective area expression of the airbag is obtained through analysis. Using the principle of virtual displacement, the airbag volume expression is derived. Combined with the gas multivariation equation, a mathematical model of the airbag bearing characteristics is established. The bearing characteristics test of the long cylindrical airbag isolator was designed. And comparing the test curve and theoretical curve of the airbag bearing characteristics. The results show that the degree of agreement between the two is relatively high. The research theory of this paper can provide a basis for the design and use of long cylindrical airbags.