Design of controllable units for mechanical transmissions

2021 ◽  
pp. 22-26
Author(s):  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Simulation Modeling ◽  
Mechanical Transmission ◽  
Non Destructive Testing ◽  
The Finite Element Method ◽  
Destructive Testing ◽  
Bench Tests ◽  
Non Destructive ◽  
Element Method

The scientific and methodological foundations of the design of mechanical transmission units of transport and technological machines, adapted for diagnosing the operability by thermometry parameters, based on the results of bench tests and simulation modeling by the finite element method, are considered. An algorithm is developed for the design testing of power units for adaptability to thermometric non-destructive testing. Keywords: design, controllability, diagnostics, thermometry, finite element method [email protected]

scholarly journals Non-Destructive Testing of a Sport Tribune under Synchronized Crowd-Induced Excitation Using Vibration Analysis

Materials ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2148 ◽  
Author(s):  
Karol Grębowski ◽  
Magdalena Rucka ◽  
Krzysztof Wilde
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Limit State ◽  
Non Destructive Testing ◽  
The Finite Element Method ◽  
Destructive Testing ◽  
Sensitivity Tests ◽  
Load Function ◽  
Non Destructive ◽  
Element Method

This paper presents the concept of repairing the stand of a motorbike speedway stadium. The synchronized dancing of fans cheering during a meeting brought the stand into excessive resonance. The main goal of this research was to propose a method for the structural tuning of stadium stands. Non-destructive testing by vibration methods was conducted on a selected stand segment, the structure of which recurred on the remaining stadium segments. Through experiments, we determined the vibration forms throughout the stand, taking into account the dynamic impact of fans. Numerical analyses were performed on the 3-D finite element method (FEM) stadium model to identify the dynamic jump load function. The results obtained on the basis of sensitivity tests using the finite element method allowed the tuning of the stadium structure to successfully meet the requirements of the serviceability limit state.

An analytical solution to the problem of a cup-cored coil located over a conducting plate with a hole

2020 ◽  
Vol 62 (12) ◽  
pp. 719-724
Author(s):  
G Tytko ◽  
Z Kowalik
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Analytical Solution ◽  
Magnetic Vector Potential ◽  
Destructive Testing ◽  
Conducting Plate ◽  
Conducting Materials ◽  
Calculation Results ◽  
Non Destructive ◽  
Element Method

Pot-core coils are utilised in eddy current non-destructive testing (NDT) to detect defects in conducting materials. In this paper, an analytical solution to the problem of a cup-cored coil placed over a three-layer plate with an inner hole is obtained. Using the truncated region eigenfunction expansion (TREE) method, expressions for the magnetic vector potential of the filamentary coil, and final formulae for the impedance of the cylindrical coil, are derived. These formulae make it possible to model conducting magnetic and non-magnetic plates with an internal hole, a surface hole, a subsurface hole and a through hole. The final expressions in a closed form are implemented in MATLAB. The calculation results are verified using finite element method (FEM) models created with COMSOL Multiphysics, Finite Element Method Magnetics (FEMM) and Ansys Maxwell software packages. Very good agreement for the coil impedance components is obtained within the whole studied frequency range of 1 kHz to 100 kHz.

scholarly journals Wear Simulation Modeling by Using the Finite Element Method

2015 ◽  
Vol 15 (2) ◽  
pp. 191-195 ◽  
Author(s):  
Zoran Pelagić ◽  
Martin Nágeľ ◽  
Milan Žmindák ◽  
Daniel Riecky
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Simulation Modeling ◽  
The Finite Element Method ◽  
Wear Simulation ◽  
Element Method

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

Sign in / Sign up

Export Citation Format

Share Document