Results 61 to 70 of about 349,185 (242)

Detecting Loosening of Bolt‐Flanged Pipe Using Smoothed Pseudo Wigner–Ville Distribution: Digital Twin‐Based Approach Using Convolution Neural Networks

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this paper, an integrated digital twin‐based fault‐diagnosis framework is proposed to detect bolt loosening in flanged pipe connections. The approach combines finite element‐based numerical modeling, experimental modal analysis, and advanced signal processing‐assisted deep learning to achieve reliable loosening detection under operational ...
Milad Shabani Yousefabad, Behzad Totakhaneh Bonab, Morteza Homayoun Sadeghi, Mir Mohammad Ettefagh, Mohammad Reza Chalak Qazani   +4 more
wiley   +1 more source

Wear and contact conditions of brake pads: dynamical in situ studies of pad on glass

, 2001
A pin-on-disc machine has been used to make in situ observations of the dynamics of the contact between brake pad materials and a glass disc, while simultaneously monitoring the friction force.
Jacobson, Staffan,, Eriksson, Mikael,, Lord, John,   +2 more
core   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Simulation of wear and contact pressure distribution at the pad-to-rotor interface in a disc brake using general purpose finite element analysis software

, 2009
Passenger car disc brakes are safety-critical components whose performance depends strongly on contact conditions at the pad-to-rotor interface. The interface can be classified as a conformal dry sliding contact.
Söderberg, Anders,, Andersson, Sören,
core   +1 more source

Tribology and particle emission from Al–SiCp MMC brake discs with secondary aluminum

Friction
This study evaluated the friction, wear, and airborne brake wear particle (BWP) emissions of aluminum-based metal matrix composite brake discs fabricated from recycled aluminum alloy reinforced with silicon carbide particles (Al–SiCp MMC).
Yezhe Lyu, Lucia Lattanzi, Samuel Awe, Anders EW Jarfors, Jens Wahlström   +4 more
doaj   +1 more source

Proposals of high frictional and low aggressive abrasion (The effect of abrasive shape and disc material for degree of wear)

Nihon Kikai Gakkai ronbunshu, 2014
Nowadays, high frictional and low aggressive disc brake is required. For designing it, we have had to depend on empirical way because brake pad is complicated composite.
Miho SUMIGAMA, Noritsugu UMEHARA, Takayuki TOKOROYAMA, Hiroyuki KOUSAKA   +3 more
doaj   +1 more source

Robotics for Crop Pollination: Recent Advances and Future Direction

Journal of Field Robotics, EarlyView.
ABSTRACT There is great interest in alternative pollination strategies for crop production in the face of climate change and perennial threats to the traditional pollination mechanisms. This review explores the potential of robotic pollination as a promising solution to these challenges affecting crop fertilization, agricultural sustainability, and ...
Ranjan Sapkota, Matthew D. Whiting, Dawood Ahmed, Manoj Karkee   +3 more
wiley   +1 more source

Fallback level concepts for conventional and by-wire automotive brake systems [PDF]

, 2012
Brake-by-wire represents the replacement of traditional brake components such as pumps, hoses, fluids, brake boosters, and master cylinders by electronic sensors and actuators.
Ball, Andrew, Schmidt, K., Retzer, H., Mishra, R., Ball, A., Mishra, Rakesh   +5 more
core   +1 more source

An Investigation into the Influence of the Contact Pressure Distribution at the Friction Pair Interface on Disc Brake Squeal [PDF]

The main purpose of this thesis is to investigate the dynamic centre of pressure during a noisy brake application. A novel technique is employed to measure the centre of pressure and contact pressure distribution between the disc/pad interfaces during ...
Ashraf, Naveed
core   +3 more sources

A Compact Annular Electrostatic Clutch Joint: Dynamic Response Modeling and Time‐Sharing Control for Underactuated Robots

SmartBot, EarlyView.
Electrostatic clutches offer programmable variable stiffness for multi‐DOF robots, but their continuous motion is usually bottlenecked by spatial constraints and detachment delays. Here, the authors report a compact annular electrostatic clutch joint with a biphasic amplitude‐frequency modulation strategy to rapidly mitigate residual polarization ...
Haochen Yong, Jian Wang, Zhisheng Xia, Zhexuan Li, Han Ding, Zhigang Wu   +5 more
wiley   +1 more source