Results 31 to 40 of about 2,929,802 (304)

Numerical Modelling of Contact Interactionof Profiled Metal Gaskets in Aircraft Flange Connections

RUDN Journal of Engineering Research
The relevance of the research is justified by the development of flange connections of hermetic structures of aeronautical equipment under conditions of weight and material intensity limitation with simultaneous increase of their technical and energetic ...
Lyubov’ I. Mironova, Oleg A. Kolesnik, Daniil B. Bosak   +2 more
doaj   +1 more source

Effect of Tapered Interference Fit between Impeller and Shaft in Turbo Machines

Journal of Mechanical Engineering, 2018
In Turbo machines, there are many components which are provided with interference to transmit torque and to maintain contact between them. There are transient scenarios where impeller and shaft lose interference and limits the speed of the impeller.
Vishwakarma Nilesh, Renuke Avinash, Phalle V.M.   +2 more
doaj   +1 more source

Preventive measures of fretting wear in contact surfaces of inner ring and backing ring of railway axle journal bearings (Combined effect of grooving and segment‐structured DLC coating towards backing rings)

Nihon Kikai Gakkai ronbunshu, 2019
Fretting wear is surface damage caused by repeated slight relative slips between two contact surfaces. In railway applications, fretting wear may occur between the inner ring and the backing ring of an axle journal tapered roller bearing.
Yoshiaki OKAMURA, Kazuki IKOMA, Takafumi NAGATOMO, Hiroshi UTSUNOMIYA   +3 more
doaj   +1 more source

FFT-Based Methods for Computational Contact Mechanics

Frontiers in Mechanical Engineering, 2020
Computational contact mechanics seeks for numerical solutions to contact area, pressure, deformation, and stresses, as well as flash temperature, in response to the interaction of two bodies.
Q. Jane Wang, Linlin Sun, Linlin Sun, Xin Zhang, Shuangbiao Liu, Dong Zhu   +5 more
doaj   +1 more source

Experimental characterization of wheel-rail contact patch evolution [PDF]

, 2006
The contact area and pressure distribution in a wheel/rail contact is essential information required in any fatigue or wear calculations to determine design life, re-grinding, and maintenance schedules. As wheel or rail wear or surface damage takes place
Björklund, S., Dwyer-Joyce, R.S., Lewis, R., Marshall, M.B., Olofsson, U.   +4 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

3D finite element analysis of wheel-rail profiles in different contact conditions [PDF]

International Journal of Railway Research, 2022
In the field of wheel-rail contact, many researches have been done into rolling profiles in this paper, three wheels from passenger wagons and two standard rails UIC60 and U33 are considered.
Mehdi Darvishi, Mahnoosh Ghaderi, Roya Sadat Ashofteh, Amin Owhadi   +3 more
doaj  

Measuring wheel/rail contact stresses using ultrasound [PDF]

, 2004
The investigation of contact area and pressure distribution in a wheel/rail contact is essential information required in fatigue and wear calculations to determine design life, regrinding requirements, and maintenance schedules.
Bjorklund, S., Dwyer-Joyce, R.S., Lewis, R., Marhsall, M.B., Olofsson, O.   +4 more
core  

Local contact numbers in two dimensional packings of frictional disks

, 2009
We analyze the local structure of two dimensional packings of frictional disks numerically. We focus on the fractions x_i of particles that are in contact with i neighbors, and systematically vary the confining pressure p and friction coefficient \mu. We
Henkes, Silke, Shundyak, Kostya, van Hecke, Martin, van Saarloos, Wim   +3 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source