Accounting the mechanical resistance of testing device for straight-flow branch pipe in the transverse direction

[摘要] The flexible inserts as a rubber-cord branch pipe are used to reduce the vibrations distributed from units of a hydraulic system through the pipelines. The device with completely rigid elements is used for the experimental determination of the stiffness characteristics of the branch pipes that determine their anti-vibration properties. In the paper the study of the mechanical resistances of an experimental device construction is carried out by method of the harmonic analysis in a frequency range of 1 Hz to 1000 Hz. Then these mechanical resistances are compared with the mechanical resistance of the branch pipe with diameter 100 mm obtained experimentally. It is found as a result it is necessary to take into account the value of the device mechanical resistance when the stiffness characteristics of the rubber-cord branch pipes with diameter 100 mm in the transverse direction at frequencies above 735 Hz are determined experimentally.

[发布机构] Omsk State Technical University, Mira ave., 11, Omsk; 644050, Russia^1;FSUE FRPC Progress, 5-th Kordnaya, 4, Omsk; 644018, Russia^2

[效力级别] 物理学 [学科分类] 力学，机械学

[关键词] Experimental determination;Experimental devices;Frequency ranges;Hydraulic system;Mechanical resistance;Rigid elements;Stiffness characteristics;Testing device