Results 111 to 120 of about 2,852,150 (255)

Multivariable stability margin optimization with decoupling and output regulation

open access: yes, 1982
[[abstract]]A procedure is developed for maximizing frequency-weighted stability margin singular values for a multivariable linear time-invariant feedback control systems subject to design constraintsrequiring decoupling and asymptotic tracking in the ...
M. G. Safonov   +3 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Turbidity current processes and deposits on the northwest African Margin

open access: yes, 2000
The Northwest African margin is affected by a wide variety of sedimentary processes, including pelagic/hemipelagic background sedimentation, alongslope bottom currents, and downslope gravity flows.
Wynn, Russell Barry, Wynn, R.B.
core   +1 more source

Simulasi Pengaruh Statik Marjin Pada Arah Memutar Trayektori Roket (Simulation Of Static Margin Effect To Directional Rocket Trajectory)

open access: yes, 2018
Paper ini mempelajari hubungan antara static margin, directional stability dan strategi belok menggunakan bank-to-turn yang diaplikasikan pada roket kendali, dalam hal ini rudal.
Larasmoyo Nugroho, Setiadi
core  

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

An Improved Energy Stability Margin for An Improved Energy Stability Margin for

open access: yes, 2005
Several static and dynamic stability criteria have been defined in the course of walking-robot history. Nevertheless, previous work on the classification of stability criteria for statically stable walking machines (having at least four legs) reveals ...
García Armada, Elena   +1 more
core  

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

Lower bounds for stability margin of n-dimensional discrete systems

open access: yes, 2003
This paper derives lower bounds for the stability margin of n-dimensional discrete systems in the Roesser’s state space setting. The lower bounds for stability margin are derived based on the MacLaurine series expansion.
Saeid Nahavandi (13086675)   +2 more
core  

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig   +2 more
wiley   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

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