Engineering surface topography analysis using an extended discrete modal decomposition

Y Shao, F Xu, J Chen, J Lu, S Du - Journal of Manufacturing Processes, 2023 - Elsevier
Surface topography is a crucial link to connect precision manufacturing processes and
product performance. Discrete modal decomposition (DMD) is recently developed filtering …

[HTML][HTML] Modelling of leakage on metal-to-metal seals

F Pérez-Ràfols, R Larsson, A Almqvist - Tribology International, 2016 - Elsevier
Surfaces in a typical seal exhibit both waviness and roughness. The influence of the
interaction between these two scales on the leakage behaviour is expected to be relevant …

An extended bi-dimensional empirical wavelet transform based filtering approach for engineering surface separation using high definition metrology

Y Shao, S Du, H Tang - Measurement, 2021 - Elsevier
Surface topography is an important index to evaluate product quality, and filtering is a key
step to realize the extraction of embedded surface components. Based the reported …

On the role of form defects in assemblies subject to local deformations and mechanical loads

J Grandjean, Y Ledoux, S Samper - The International Journal of Advanced …, 2013 - Springer
Tolerancing activity is usually based on the traditional assumptions that surfaces have no
form defects and are rigid under external loads. These assumptions tend to simplify the …

Leakage monitoring in static sealing interface based on three dimensional surface topography indicator

Y Shao, Y Yin, S Du, T Xia, L Xi - Journal of …, 2018 - asmedigitalcollection.asme.org
Leakage directly affects the functional behavior of a product in engineering practice, and
surface topography is one of the main factors in static seal to prevent leakage. This paper …

Semi-analytical methods for the joint strength and sealing performance in the failure process of the subsea pipeline compression connector

Z Li, G Wang, X Wang, S Yao, F Yun, P Jia… - Journal of Marine …, 2023 - mdpi.com
Radial seals are sensitive to axial overload failure and may cause leaks. This paper
presents two semi-analytical methods for the joint strength and sealing performance of the …

Gas slip flow in a fracture: local Reynolds equation and upscaled macroscopic model

T Zaouter, D Lasseux, M Prat - Journal of Fluid Mechanics, 2018 - cambridge.org
The slightly compressible flow of a gas in the slip regime within a rough fracture featuring a
heterogeneous aperture field is analysed in depth in this work. Starting from the governing …

Leakage Retardation of Static Seals via Surface Roughness and Wettability Modification

Z Gu, Q Dai, C Ma, W Huang, X Wang - Langmuir, 2024 - ACS Publications
In this paper, the effects of surface roughness and wettability on the leakage performance of
static seals were highlighted. The results show that the leakage rate is negatively correlated …

High definition metrology enabled three dimensional discontinuous surface filtering by extended tetrolet transform

Y Shao, K Wang, S Du, L Xi - Journal of manufacturing systems, 2018 - Elsevier
Surface topography is of great importance for the functional behavior of a part, and filtering is
a key step in achieving topography analysis. The traditional filtering methods such as …

Sealing analysis of face-milled surfaces based on high definition metrology

Y Yin, S Du, Y Shao, K Wang, L Xi - Precision Engineering, 2022 - Elsevier
Leakage is always a concern in the interface between the cylinder block and the head.
Nowadays, sealing of this interface is almost exclusively achieved by multi-layer steel head …