17 Appendix 7.2.

Results of calculations of the stress-strain state (SSS) of the pipeline UZA oil gathering pipeline section - fixed support N-38

17.1 Movements of pipeline elements under the influence of:

  • oscillations with frequencies from 12 to 86400 Hz,
  • weight,
  • working pressure,
  • pressure changes during operation,
  • temperature changes during starts/stops.

Figure 7.2.1. Displacement of pipeline elements, m a) - in the direction of the X axis,

    • in the direction of the Y axis,
    • in the direction of the Z axis.

Figure 7.2.2. Angles of rotation of pipeline elements (radians) a) - around the X axis,

    • around the Y axis,
    • around the Z axis.

Figure 7.2.3. Torque (bending) moments acting on pipeline elements a) - around the X axis,

    • around the Y axis,
    • around the Z axis.

Figure 7.2.4. Forces acting on pipeline elements a) - in the direction of the X axis,

    • in the direction of the Y axis,
    • in the direction of the Z axis.

17.2 Effective and permissible stresses

17.3 Failure rates at different oscillation frequencies

17.4 Total failure rate