Design and Research on the Compression Structure of PTFE Hose for Aeroengine
In order to conduct research on the compression structure technology of PTFE hose for aero-engines,a finite element simulation model of the compression structure of PTFE hose was established.Different compression amounts were given for simulation calculation,and contact stress was obtained.Contact stress was used as the standard to measure the burst pressure of PTFE hose,and burst tests were conducted.The effective-ness of the simulation method was verified by comparing the test and simulation.The simulation and experimen-tal results show that there is a positive correlation between the clamping amount and the burst pressure within a certain range.However,beyond this clamping amount,the PTFE inner pipe at the clamping joint will be dam-aged due to excessive stress.Therefore,the selection of clamping amount must be within a reasonable range.
NETL
NSTL
万方数据
