Results 1 to 10 of about 3,076 (107)
Effects of Tool Plunging Path on the Welded Joint Properties of Pinless Friction Stir Spot Welding
Lubricants, 2023 Four tool plunging paths including a one-time plunging path and three step-by-step plunging paths were designed to study the effects of the tool plunging path on the welded joint properties of pinless friction stir spot welding (PFSSW).
Xiaole Ge, Di Jiang
exaly +3 more sources
Sustainable assessment of process–reinforcement interaction effects on mechanical strength of FSW Al 7475 hybrid composites [PDF]
Scientific ReportsThis paper focused to enhance the mechanical and microstructural properties of Al 7475 alloy by incorporating Si₃N₄/TiO2 hybrid ceramic particles in developing composites through Friction Stir Welding (FSW). Tool rotational speed (TR), Plunging Force (PF)
Indira Benjeer Budavarthi +7 more
doaj +2 more sources
Aeroelastic Stability of Combined Plunge-Pitch Mode Shapes in a Linear Compressor Cascade [PDF]
International Journal of Turbomachinery, Propulsion and Power, 2022 Modern aeroengine designs strive for peak specific fuel and thermal efficiency. To achieve these goals, engines have more highly loaded compressor stages, thinner aerofoils, and blended titanium integrated disks (blisks) to reduce weight. These configurations promote the occurrence of aeroelastic phenomena such as flutter.
George Hill +4 more
openaire +4 more sources
On the Rotating Vortex Rope and Its Induced Structural Response in a Kaplan Turbine Model
Energies, 2022 The rotating vortex rope, which can be decomposed in the rotating and the plunging modes, is the origin of pressure fluctuations in the draft tube cone when hydraulic turbines operate at part load, compromising the structural integrity and limiting the ...
Rafel Roig +4 more
doaj +1 more source
Aerospace, 2021 This paper focuses on estimating dynamic stability derivatives using a computational fluid dynamics (CFD)-based force oscillation method, and on separating the coupled dynamic derivatives terms obtained from the method. A transient RANS solver is used to
Nadhie Juliawan +3 more
doaj +1 more source
Friction Stir Spot Welding Of Pure Copper (C11000) With Pre-Holed Threaded Aluminum Alloys (AA5052)
Journal of Applied Science and Engineering, 2023 Friction stir spot welding (FSSW) joining process was used to join pure copper (C11000) with aluminum alloy (AA5052). So, a successfully joining for the samples is achieved.
Osamah Sabah Barrak +2 more
doaj +1 more source
Mode competition in a plunging foil with an active flap: A multiscale modal analysis approach
Physical Review Fluids, 2022 The flow-induced flutter has a significant role in aircraft stability, renewable energy extraction, animal locomotion, among many other applications. While being a ubiquitous phenomenon, the control of the flutter response has been primarily limited to simplified systems and, often, with the help of linear inviscid flow theories.
Tso-Kang Wang, Kourosh Shoele
openaire +2 more sources
Low-Grade Flow Energy Harvesting by Low-Mass-Ratio Oscillating Bent Plate
Energies, 2022 Low-grade renewable energy possesses large reserves and a wide distribution in the environment, but it is far from fully exploited due to the high cost–income ratio when using traditional convertors.
Wei Jiang +4 more
doaj +1 more source
Joining of Carbon Steel AISI 1006 to Aluminum Alloy AA6061-T6 Via Friction Spot Joining Technique
International Journal of Applied Mechanics and Engineering, 2022 This work aims to join sheets of carbon steel to aluminum alloy AA6061. A lap joint arrangement was used with a joint lap area of dimensions * 25 25 mm . The joining procedure was carried out using a rotating tool of 10 mm shoulder diameter.
Munaf Hashim Ridha +5 more
doaj +1 more source
Vortex Mode Bifurcation and Lift Force of a Plunging Airfoil at Low Reynolds Numbers [PDF]
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2010 Force and supporting particle image velocimetry measurements were performed on a plunging NACA 0012 airfoil at a Reynolds number of 10,000, at pre-stall, stall, and post-stall angles of attack. The lift coefficient for pre-stall and stall angles of attack at larger amplitudes showed abrupt bifurcations with the branch determined by initial conditions ...
Cleaver, David J +2 more
openaire +1 more source