The obtained unknown corrugated Hydraulic hose assembly fatigue strength.

Here we studied the stress a: and a corrugated hose, identified by the different pressure and axial forces (or to a position shift) matches: Cycle parameters of the method. Stress cycle parameters should only be determined by the point of maximum stress of the corrugated hose, a the extremum sectional view of the corrugated hose on the A, B, C and D point is often this point (see Figure 35). For some corrugated hose, dangerous point may be somewhat deviate from the ring shells and the flat part of the connection (see Chapter II, Section 6). However, the standard sizes of the corrugated hose, plays a leading role in the stress state of the component (ie, a dynamic bending stress in the dangerous point and the A, B, C, D at the point even if they do not coincide, then nor away too much later in the calculation of the fatigue strength of the standard sizes of the corrugated hose, only with the stress values ​​of A, B, C and D point.socketless fitting
For each specific loading conditions, to determine the parameters of the above-mentioned various points of the corrugated hose in such a point of stress cycles, at this point due to the pressure becomes concentrated force (displacement) generated by the bending stress is a positive number. Stress cycles at these points is actually often the most dangerous. The unit stress can easily determine the principal stress cycle parameters. Size corrugated hose unit stress value (in absolute terms) can be calculated in accordance with the method described in section 3 in the computer and are listed in the Appendix. (The pressure is zero) or 1 kg of force / pressure attached Guang (zero displacement) role in the concentration of I mm displacement can cause stress in the the corrugated hoses study point is taken as the unit stress. For both loading conditions listed in the Appendix to call. And bow. - Having to film stress and film stress; bite N-by to the bending stress. Extremal cross section circumferential bending stress bow, represented by the formula (24) and meridional bending stress.
Given in Table 1, the symbols of all the stress components in the A, B, C and D point to change the loading direction will cause various changes in the stress component Symbol.hydraulic manifold block