Hydraulic Hoses.pdf

High-pressure hoses in hydraulic drives are prone to external and internal damage, which can lead to failure and affect the reliability and energy parameters of the system. External damage is caused by environmental influences and loads, while internal damage is caused by high pressures, fluid pulsation, and non-compliance with frequency characteristics. A study was conducted to analyze the influence of repair performance on fluid dynamics and energy parameters of high-pressure hoses. The research used numerical simulations and experimental measurements to compare the behavior of non-repaired and repaired high-pressure hoses. The results showed insignificant power losses in repaired hoses compared to standard hoses. The study highlights the importance of considering the maintenance costs of pipelines and the value of future maintenance costs when evaluating the repair of high-pressure hoses.

Key findings include:

High-pressure hoses with external and internal damage can operate for some time but reduce dynamic flow parameters and reliability of the hydraulic system.
Damage to the external or internal layer of the high-pressure hose can lead to accidentally breaking the hose during exploitation.
The sooner the damage is established and the high-pressure hose is technically serviced or replaced, the lower the risk of failure of the entire hydraulic drive and energy losses.
The evaluation of maintenance costs of pipelines should consider the present repair cost and the value of future maintenance costs using the repaired system.
The study found insignificant power losses in repaired hoses compared to standard hoses.

The research used the following methods:

Numerical simulations using Navier-Stokes equations
Experimental measurements of fluid flow pressure inside high-pressure hoses
Comparative analysis of non-repaired and repaired high-pressure hoses

The study's results can be used to improve the reliability of hydraulic hoses systems and reduce the risk of failure and energy losses.