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为了评价密封件的各种结构和材料,研究密封件在往复运动下的工作机理,必须测定其逼真地接近使用状态下的接触应力。为了进行这方面的研究,苏联橡胶工业研究院列宁格勒分院研制了一种能够得到在介质压力下往复运动状态的接触应力图的装置。装置的原理图示于图1中。由恒定的压力源1向模拟试验机的腔内供给压力。同时空气进入薄膜调节器的腔
In order to evaluate the various structures and materials of the seal, it is necessary to study the operating mechanism of the seal under reciprocating motion and to measure the contact stress in a realistic manner close to the state of use. In order to carry on the research in this aspect, the Leningrad branch of the Soviet Union Rubber Industry Research Institute has developed a contact stress map that can be reciprocated under the medium pressure. The schematic of the device is shown in Figure 1. Pressure is supplied from the constant pressure source 1 to the cavity of the simulation tester. At the same time the air enters the membrane regulator chamber