![]() ![]() Ahlström, et al, Molecular modelling of oxygen and water permeation in polyethylene, Polymer, 54 (12) (2013) 2988–2998.Ī. Yampolskii, A novel method for predictions of the gas permeation parameters of polymers on the basis of their chemical structure, J. Wang, Theoretical calculation on permeation of gas molecules through crystalline poly(p-xylylene) (PPX) films, Sci. ![]() Hanlon, Auser’s Guide to Vacuum Technology, 3rd edn. The analysis results can provide guidance for determination of the next power on time of the transformer and be used as a reference for decision makers. Furthermore, a comparison of the pressure change time was made between the transformer seal cavity with in-orbit failure and ground simulation analysis of the same design, which shows good agreement. Through establishing the pressure change model of the seal cavity, analyzing the gas permeation of the encapsulating material, testing the material outgassing characteristics of the transformer body, this paper obtained the pressure change trend of the transformer sealing cavity during its time in-orbit and predicted the time required for it to escape from the lower pressure discharge region. In this article, the pressure change analysis based on gas permeation and material outgassing principle of the seal cavity for satellite in-orbit is carried out. The gas permeability of solid material is one of the important factors affecting pressure change properties of seal products.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |