Results 1 to 10 of about 215,133 (186)

Prediction of the Physical Properties of a Structural Member by the Impact Hammer Test [PDF]

open access: yesSensors, 2022
The frequency response function (FRF) in the frequency domain is a black box used to collect physical information and to indicate the modal characteristics of a dynamic system.
Eun-Taik Lee, Yu-Sik Hong, Hee-Chang Eun
doaj   +4 more sources

Crack Detection in an Aluminium Oxide Grinding Wheel by Impact Hammer Tests

open access: yesComputation, 2023
Grinding is widely used as the last step of the manufacturing process when a good surface finish and precise dimensional tolerances are required. However, if the grinding wheels have cracks, they may lead to a hazardous working environment and produce ...
Yubin Lee   +3 more
doaj   +3 more sources

Test and simulation study of the effect of transverse impact stress on the rosette 19-hole gun propellant under low temperature

open access: yesFirePhysChem, 2022
Studying the stress propagation and damage mechanism for the mechanical environment of the gun bore is an important way to popularize and apply the new propellant.
Ruihua Zhang   +4 more
doaj   +1 more source

PENDULUM IMPACT HAMMER TESTS ON TIMBER BEAMS - EXPERIMENTAL SETUP

open access: yesWorld Conference on Timber Engineering (WCTE 2023), 2023
World Conference on Timber Engineering WCTE ...
Cao, Alex Sixie, Frangi, Andrea
openaire   +3 more sources

Re-examination of dynamic load tests on piles

open access: yesYantu gongcheng xuebao, 2023
The dynamic load test (DLT) and the rapid load test (RLT) on piles both pursue the full activation of pile capacity during the impact event and evaluate the pile capacity by measuring and analyzing the impact excitation and response signals of pile top ...
CHEN Fan 1, 2, WEN Zhentong 1, XIE Xiaofeng 1, LI Jianmin 2
doaj   +1 more source

Development of Smoothed Particle Hydrodynamics based water hammer model for water distribution systems

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
Smoothed Particle Hydrodynamics (SPH) method is used to solve water hammer equations for pipeline systems due to its potential advantages of easily capturing column separation and slug impact.
Wenke Song   +6 more
doaj   +1 more source

Research on the Drop Hammer Impact Test System

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The drop hammer impact test system adopts the multi-purpose and modular design to solve the four problems of the airbag door of automobile test instrument panel: the test conditions are generally inconsistent with the actual conditions; The secondary impact problem exists in the collision test.
Zhiming Wang   +2 more
openaire   +1 more source

Effect of Hammer Type on Generated Mechanical Signals in Impact-Echo Testing [PDF]

open access: yesMaterials, 2021
The impact-echo diagnostic method is a well-known nondestructive pulse compression test method, which can be relatively easily used for the testing of concrete and reinforced concrete elements. The evaluation of the measurement with this method is based on the analysis of the signal itself in the time and frequency domains.
Richard Dvořák, Libor Topolář
openaire   +3 more sources

Plastic Response and Failure of the Cruciform Structure under In-Plane Load

open access: yesJournal of Marine Science and Engineering, 2023
In this study, a common cruciform structure in ship hulls was designed and experimented with in order to analyze its deformation characteristics under planar collision and quasi-static loading.
Xiufei Wang   +3 more
doaj   +1 more source

Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading

open access: yesMicromachines, 2023
An experimental testing system for the two-dimensional (2D) fuze overload loading process was designed to address the loading issues of recoil overload and centrifugal overload in fuze safety and arming (S&A) device.
Zhibo Wu   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy