YaBeSH Digital Library: Recent submissions
Now showing items 120 of 294907

Model Predictive Control of a MultiMode Suspension System Using Preview Information and Weight Optimization
(The American Society of Mechanical Engineers (ASME), 4/24/2023 )This study examines the effectiveness of a model predictive controller (MPC) on the multimode active suspension concept to reduce driver absorbed power. A multimode suspension uses additional degreesoffreedom beyond a ... 
On the Benefits and Limitations of Modulated Damping With Passive Motor Control
(The American Society of Mechanical Engineers (ASME), 5/15/2023 )Conventional emulated damping, in which velocity feedback is employed in combination with motor current control to emulate damping, is used in a number of mechatronic applications. As known in the field, although such ... 
Control Oriented Modeling, Experimentation, and Stability Analysis of an Autorotating Samara
(The American Society of Mechanical Engineers (ASME), 5/15/2023 )This paper presents a controloriented model for describing the steadystate and dynamic behavior of a singlewinged samara seedpod in autorotative descent. A negligible lateral center of mass motion and constant, prescribed ... 
ModelFree H∞ Output Feedback Control of Road Sensing in Vehicle Active Suspension Based on Reinforcement Learning
(The American Society of Mechanical Engineers (ASME), 5/2/2023 1)An active suspension system ensures the controllability of a vehicle in the vertical direction, which greatly enhances the control redundancy and safety of an intelligent driven vehicle. However, many calibrated model ... 
Rotorcraft Robotic Landing Gear With Locking Mechanisms
(The American Society of Mechanical Engineers (ASME), 4/26/2023 )Robotic landing gear (RLG) for rotorcraft improves performance in landing on sloped uneven terrain, unprepared areas, and ship decks. The interaction between the feet of the RLG and the landing surface are pivotal to a ... 
Differential Flatness of Slider–Pusher Systems for Constrained Time Optimal Collision Free Path Planning
(The American Society of Mechanical Engineers (ASME), 4/26/2023 )In this work, we show that the differential kinematics of slider–pusher systems are differentially flat assuming quasistatic behavior and frictionless contact. Second, we demonstrate that the state trajectories are invariant ... 
Koopman Model Predictive Control of an Integrated Thermal Management System for Electric Vehicles
(The American Society of Mechanical Engineers (ASME), 4/13/2023 )This paper is concerned with energy efficient operation of an integral thermal management system (ITMS) for electric vehicles using a nonlinear model predictive control (MPC). Driven by a heat pump (HP), this ITMS can ... 
Hybrid KinematicDynamic Sideslip and Friction Estimation
(The American Society of Mechanical Engineers (ASME), 4/3/2023 1)Vehicle sideslip and tyre/road friction are crucial variables for advanced vehicle stability control systems. Estimation is required since direct measurement through sensors is costly and unreliable. In this paper, we ... 
Discrete Robust Control of Robot Manipulators Using an Uncertainty and Disturbance Estimator
(The American Society of Mechanical Engineers (ASME), 3/20/2023 )This article presents the design of a robust observer based on the discretetime (DT) formulation of uncertainty and disturbance estimator (UDE), a wellknown robust control technique, for the purpose of controlling robot ... 
SelfTriggered Model Predictive Control With SampleandHold Fashion for Constrained ContinuousTime Linear Systems
(The American Society of Mechanical Engineers (ASME), 1/11/2023 )A novel selftriggered model predictive control (STMPC) strategy for linear constrained systems with additive disturbance is presented in this paper. The actuator adopts the control input from the controller by sampleandhold ... 
Swirl Brake Design for Improved Rotordynamic Vibration Stability Based on Computational Fluid Dynamics System Level Modeling
(The American Society of Mechanical Engineers (ASME), 7/25/2023 )The accurate characterization of compressor rotordynamic coefficients during the design phase reduces the risk of subsynchronous vibration problems occurring in the field. Although rotordynamists extensively investigate ... 
Synthesis of Recursive Control Barrier Functions
(The American Society of Mechanical Engineers (ASME), 12/9/2022 )This paper deals with the enforcement of safety constraints using control barrier functions (CBFs). We focus on dynamic systems that have high relative degree and where the output needs to be differentiated multiple times ... 
Inverse Optimal Control for Maximizing Harvested Energy From Dynamical Systems
(The American Society of Mechanical Engineers (ASME), 11/11/2022)This paper formulates and solves a new problem of inverse optimal control to maximize harvested energy from dynamical systems induced by external excitations. An inverse optimal control law is designed to minimize a cost ... 
On the Verification of Finite Element Determinations of Stress Concentration Factors for Handbooks
(The American Society of Mechanical Engineers (ASME), 8/11/2023 )Here we offer an approach for being reasonably sure that finite element determinations of stress concentration factors are accurate enough to be included in engineering handbooks. The approach has two contributors. The ... 
Analysis of Roll Decay for SurfaceShip Model Experiments With Uncertainty Estimates
(The American Society of Mechanical Engineers (ASME), 8/2/2023 1)Roll decay of David Taylor model basin (DTMB) Model 5720, a 23rdscale freerunning model of the research vessel (R/V) Melville, is evaluated with uncertainty estimates. Experimental rolldecay time series was accurately ... 
Code Verification for the SENSEI CFD Code
(The American Society of Mechanical Engineers (ASME), 6/13/2023 )This work performs systematic studies for code verification for turbulence modeling in our research CFD code SENSEI. Turbulence modeling verification cases including cross term sinusoidal manufactured solutions and a few ... 
Performance Prediction of an Axial Piston Pump With Increasing Severity of Leakage Fault in Single and Multiple Cylinders
(The American Society of Mechanical Engineers (ASME), 11/11/2022)As axial piston pumps (APP) become increasingly compact to meet the size, weight, and performance demands (high pressure ratings), they are prone to wear, and hence the leakage between the sliding parts, which run under ... 
HYPADUQ: A DerivativeBased Uncertainty Quantification Method Using a Hypercomplex Finite Element Method
(The American Society of Mechanical Engineers (ASME), 6/13/2023 )A derivativebased uncertainty quantification (UQ) method called HYPADUQ that utilizes sensitivities from a computational model was developed to approximate the statistical moments and Sobol' indices of the model output. ... 
Underwater Propulsion Using Forced Excitation of a Flexible Beam
(The American Society of Mechanical Engineers (ASME), 6/7/2023 1)Aquatic animals commonly oscillate their fins, tails, or other structures to propel and control themselves in water. These elements are not perfectly rigid, so the interplay between their stiffness and the fluid loading ... 
Sparse Metapiles for Shear Wave Attenuation in HalfSpaces
(The American Society of Mechanical Engineers (ASME), 8/18/2023 )We show that shear waves traveling toward the surface of a halfspace medium can be attenuated via buried onedimensional arrays of resonators—here called metapiles—arranged according to sparse patterns around a site to ...