Results 71 to 80 of about 92,493 (300)
Modeling of servo dynamic stiffness for multiple-periodic repetitive learning control system
Measurement + ControlServo dynamic stiffness is a pivotal index in characterizing the rejecting performance for the exogenous periodic disturbances of the repetitive learning control system. In this paper, the mathematical modeling of the servo dynamic stiffness for the well-
Wu-Sung Yao
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Research on the evolution law of dynamic performance of CR400BF EMU train based on stochastic dynamics simulation [PDF]
Railway SciencesPurpose – This paper aims to obtain the evolution law of dynamic performance of CR400BF electric multiple unit (EMU). Design/methodology/approach – Using the dynamic simulation based on field test, stiffness of rotary arm nodes and damping coefficient of
Di Cheng +5 more
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Dynamic stiffness method for curved structures
, 2012 published_or_final_version ; Civil and Structural Engineering ; Master ; Master of ...
openaire +2 more sources
Dynamic impedances of bridge abutments
, 1992 The soil-structure interaction at bridge abutments may introduce important changes in the dynamic properties of short to medium span bridges. The paper presents the results obtained, through the use of the Boundary Element Method (B.E.M.) technique in ...
Alarcón Álvarez, Enrique +2 more
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Advanced Engineering Materials, EarlyView.We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang +2 more
wiley +1 more source
On Dynamic Mesh Force Evaluation of Spiral Bevel Gears
Shock and Vibration, 2019 The mesh model and mesh stiffness representation are the two main factors affecting the calculation method and the results of the dynamic mesh force.
Xiaoyu Sun +3 more
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Nonlinear vibration isolators with asymmetric stiffness
, 2012 A vibration source is commonly coupled to a receiving structure by a vibration isolator. A key trade-off in the choice of vibration isolator is the requirement for a wide frequency range of isolation without excessive static deflection.
Abolfathi, A.
core
Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales
Advanced Engineering Materials, EarlyView.Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik +7 more
wiley +1 more source
Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures
Advanced Engineering Materials, EarlyView.We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann +2 more
wiley +1 more source
工程科学与技术, 2019 In order to analyze the effect of coupling relationship between joint stiffness parameters on the dynamic performance of machine tool bolt joints surface, a response surface method which is based on the theory of response surface statistics was proposed ...
Shanshan YANG +3 more
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