Abstract: Servo-hydraulic actuators exhibit frequency-dependent variations of amplitude and delay during real-time hybrid simulation (RTHS). Effective compensation techniques to overcome these variations is a crucial component for ...

Abstract: Linear model updating techniques have been successfully applied in structural health monitoring (SHM) for assessing structural conditions. However, civil structures generally exhibit nonlinear hysteretic behavior under ...

Abstract: Image-based automated crack detection techniques have been developed and applied extensively during the past decade. However, issues existing in this type of methodology have not yet been fully addressed. Early studies ...

Abstract: Accurate water level forecasting is essential for agricultural water resources management, hydropower generation, flood control, drought relief, and watershed planning. A combined model (ICEEMDAN-VMD-WOA-ELM) is proposed ...

Abstract: Because a structure’s modal parameters (natural frequencies and mode shapes) are affected by structural damage, finite- element model updating techniques are often applied to locate and quantify structural damage. However, ...

Abstract: This paper investigates the kinematics and statics of a 3UPU robot in screw coordinates. According to the definition of a twist, both the angular velocity of a rigid body and the linear velocity of a point on it are expressed ...

Abstract: Most practical multi-objective optimization problems are often characterized by two or more expensive and conflicting objectives, which require time-consuming simulations. Commonly used algorithms construct a surrogate ...

Abstract: The ensemble of surrogate models is increasingly implemented in practice for its more flexibility and resilience than individual models. The optimization-based two-layer pointwise ensemble of surrogate models (OTL-PEM) is ...