Search
CSV
RISActive Sound Attenuation in Finite-Length Ducts Using Close-Form Transfer Function Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the problem of active sound cancellation in finite-length ducts is investigated. The closed-form solution of a one-dimensional wave equation is obtained as the plant model. The ...
Feedforward and Feedback Control Strategy for Active Noise Cancellation in Ducts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the theoretical work about active noise cancellation in ducts. The proposed control system is designed based on the assumption of a one-dimensional sound field. The controller ...
Asymptotic Rejection of Periodic Disturbances With Fixed or Varying Period
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A constructive derivation of repetitive control is obtained, through attempting to derive a control law for asymptotic rejection of periodic disturbances. This derivation not only reveals a close ...
Development, Calibration, and Validation of a New M-E Rutting Model for HMA Overlay Design and Analysis
Publisher: American Society of Civil Engineers
Abstract: The purpose of this paper is to present a new mechanistic-empirical (M-E) rutting model developed for hot-mix asphalt (HMA) overlay thickness design and analysis. After reviewing existing rutting models in the literature, ...
Assessment of Low Cycle Fatigue Life of Steam Turbine Rotor Based on a Thermodynamic Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new nonlinear model is proposed to assess the low cycle fatigue life of a 300 MW steam turbine rotor. Manson-Coffin equation and cyclic stress-strain relationship are employed to eliminate ...
Redesigning Highway Infrastructure Systems for Connected Autonomous Truck Lanes
Publisher: ASCE
Abstract: Previous studies on connected autonomous vehicles (CAVs) examined pavement performance and lane widths separately and in isolation, and without consideration for roadworks conditions. Hence, this study presents a holistic, ...
Simple Asphalt Mixture Shear Rutting Test and Mechanical Analysis
Publisher: ASCE
Abstract: Asphalt pavement rutting is caused primarily by shear stresses induced by heavy truckloads. Many tests have been developed to determine asphalt mix rutting potential. However, due to limited correlation with field rutting ...
Synchronization of Two Motion Control Axes Under Adaptive Feedforward Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, motion synchronization of two d-c motors, or motion control axes, under adaptive feedforward control is considered. The adaptive feedforward control system for each axis consists ...
Proposed Loading Waveforms and Loading Time Equations for Mechanistic-Empirical Pavement Design and Analysis
Publisher: American Society of Civil Engineers
Abstract: Under the same applied traffic loading, time is traditionally assumed to be a function of only the vehicle speed and the depth beneath the pavement surface. Additionally, no definite loading waveform has been established ...
Development of Multiple-Choice Default Load Spectra Inputs Based on Road Types for the Texas Mechanistic-Empirical Flexible Pavement Design System
Publisher: ASCE
Abstract: Traffic loading is one of the key factors considered in pavement design. It is anticipated that the use of axle load spectra provides more accurate traffic-loading inputs than the traditional equivalent single-axle load ...