Results 41 to 50 of about 151 (141)

Rail Corrugation Characteristics Deduced from a Wavelet Analysis of High‐Speed Train Interior Noise and Vibration

open access: yesShock and Vibration, Volume 2024, Issue 1, 2024.
A method to deduce the characteristics of rail corrugation was developed and presented in this paper. It has been found that noise and vibration in the train vehicle were primarily contributed by rail corrugation and wheel polygonalisation. As the characteristics of wheel sets of a particular train can be assumed to be unchanged during a trip, rail ...
Xiaohan Phrain Gu   +4 more
wiley   +1 more source

Research on Lateral Vibration and Load Sensitivity Reductions for Large‐Scale Complex Nonconservative Systems Using Rigid‐Flex Coupling Simulation Technique

open access: yesShock and Vibration, Volume 2024, Issue 1, 2024.
For large‐scale complex nonconservative systems such as high‐speed rolling stock, the rigid‐flex coupling simulation technique is one of the effective methods in reducing lateral vibration and dynamic load sensitivity. Since two uncertain influences of wheel spin dissipation are caused by wheelset yaw oscillations and alternative load path variation ...
Qi-bin Wang   +6 more
wiley   +1 more source

Quantitative Evaluation on Dynamics of Fixturing System

open access: yesJournal of Machine Engineering
When complex and thin-walled workpieces produced for the aircraft industry are machined, they are supported by fixtures to prevent them from easily deforming or vibrating.
Raiki Numata   +2 more
doaj   +1 more source

7. Reception of Nineteenth-Century Couple Dances in Hungary

open access: yes, 2020
This essay offers a survey of the appearance and reception of round dances as they began to spread into Hungary from neighbouring countries in the nineteenth century. First, it identifies the dances within the broader Hungarian dance repertoire; then, it continues with a selected and annotated source catalogue in an effort to demonstrate the ...
openaire   +1 more source

RCSA-Based Analysis of Stability Lobes in Milling Incorporating Tool Clamping Errors

open access: yesMachines
This study proposes a methodology for selecting robust stable cutting conditions from a Receptance Coupling Substructure Analysis (RCSA)-based Stability Lobe Diagram (SLD) by considering tool clamping errors that may occur during operator tool setup ...
Jun-Hyun Jo   +4 more
doaj   +1 more source

Prediction of Dynamic Characteristics and Control Parameter Optimization for Precision Motion Stages by Integrating Generalized Receptance Coupling Substructure Analysis and Machine Learning

open access: yesMachines
To address the complex dynamic behavior of four-axis precision motion platforms under high-speed and high-acceleration conditions, as well as the difficulty of traditional modeling methods in balancing accuracy and efficiency, this paper proposes a data ...
Fengguo Li   +12 more
doaj   +1 more source

Dynamic Modeling and Chatter Stability of a Robotic Milling Manipulator Considering the Flexibility of Arms and Joints

open access: yesJournal of Manufacturing and Materials Processing
The application of robotic milling manipulators demonstrates a promising method for the efficient manufacturing of large-scale structures. However, the cutting accuracy and efficiency of milling robots are predominantly subjected to their low stiffness ...
Chao Chen   +4 more
doaj   +1 more source

Determination Modal parameters a Turning machining system

open access: yesMechanics and Advanced Technologies
Among various machining processes, turning accounts for the largest volume of chip removal worldwide, so much attention is paid to predicting stability and preventing chatter, with a special emphasis on machining systems. The use of CNC machines expands
Юрій Петраков   +3 more
doaj   +1 more source

Impact of Lateral Hollow Wear Depth on 400 km/h Wheel–Rail Contact and Noise Radiation

open access: yesVibration
Lateral wear inevitably develops on the wheel treads of high-speed trains after a period of operation. Extensive research has been dedicated to circumferential wear (e.g., wheel polygonization), whereas studies on lateral tread wear and its impact on ...
Mandie Tu   +4 more
doaj   +1 more source

A spindle system analysis using systems receptance coupling approach

open access: yesDesign of Machines and Structures
The goal of this study is to dynamically simulate a turning-centre main spindle system utilizing the systems receptance coupling technique to determine the spindle system’s first three resonant frequencies in the event of transverse vibrations. The findings are then confirmed using the finite element technique using ANSYS software.
Mohammad Alzghoul   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy