Results 61 to 70 of about 54,658 (214)
The influence of various excitation mechanisms on ground vibration from trains
, 2012 Ground vibration from trains is an increasingly important environmental problem. This study investigates the various excitation mechanisms of ground vibration.
Triepaischajonsak, Nuthnapa
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A hybrid model for prediction of ground-borne vibration due to discrete wheel/rail irregularities
, 2015 A hybrid model for the prediction of ground-borne vibration due to discrete wheel and rail irregularities, such as wheel flats, dipped welds and insulated rail joints, is presented.
Lombaert, G., +8 more
core +1 more source
Underground SpaceWhen tunnelling in difficult ground conditions, shield machine would inevitably produce significant ground loss and vibration, which may disturb the ground ahead of the tunnel face.
Junzuo He +4 more
doaj +1 more source
Ground State Vibrational Frequencies [PDF]
Nature, 1936 A STUDY of the ground state vibrational frequencies of diatomic molecules in relation to the Periodic Table has shown that the arithmetic mean m of the vibrational frequencies of the two elementary molecules A2 and B2 which belong to the same Periodic Group is approximately equal to the frequency of the compound molecule AB.
openaire +1 more source
Simulation of the generation and propagation of blast induced shock waves [PDF]
, 2003 Hybrid modelling of blast vibration uses the signal produced from a single hole test shot to simulate the vibration that would be produced by a full-scale production blast.
Yuill, Gavin John
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Chengshi guidao jiaotong yanjiu［Objective］ The vibration impact of ground traffic on nearby ancient buildings is becoming increasingly prominent. It is necessary to analyze the influence of ground traffic and the proposed Jinan Metro Line 6 on the vibration characteristics of the ...
AI Nan +3 more
doaj +1 more source
, 2011 Aerospace manufacturers are faced with the challenge of designing systems and components that have to be safer, more reliable, affordable, offer improved passenger comfort and have less environmental impact than their competitors.
Peeters, Bart +6 more
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Semi-active damping control for vibration isolation of base disturbances [PDF]
, 2004 This thesis is concerned with semi-active damping control for vibration isolation of base disturbances. The aim is to investigate the effectiveness and suitability of semi-active damping control strategies for improving steady-state vibration isolation ...
Liu, Yuyou
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Instability zones for isotropic and anisotropic multiblades rotor configurations [PDF]
, 2010 Helicopter ground resonance is an unstable dynamic phenomenon which can lead to the total destruction of the aircraft during take-off or landing phases. The earliest research in this domain was done by Coleman and Feingold around the 60's decade.
Leonardo Sanches +9 more
core +1 more source
New excitation signals for aircraft ground vibration testing
, 2011 For the last 12 years, DLR and ONERA are involved in the realization of the Ground Vibration Testing (GVT) campaigns for AIRBUS civil aircrafts. Continuous developments are carried out in order to improve the test productivity without jeopardizing the ...
Stéphan, Cyrille +6 more
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