Determining structural and technological parameters of the polymer films winding process for pipelines
The paper considers issues related to technology of manufacturing pipelines by winding polymer film materials and assessing their tightness with respect to gaseous and liquid fuel components. The shell is made by winding the required number of layers of continuous film tape with a given width, thickness and overlap on a rigid removable mandrel. The multilayer film structure of the shell made by winding a narrow polymer tape is considered as a computational model of the sealing shell of the pipeline. The tightness of the polymer pipeline shell is determined both by the physical and chemical parameters of the film material (permeability and diffusion coefficients) and by the structural and technological parameters of the wound shell. The simulation results allowed determining the main structural and technological parameters of the winding process as applied to the polyimide-fluoroplastic film PMF-352, which provide the total leakage of the film fuel lines within the requirements.
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