POST-EARTHQUAKE ASSESSMENT OF A MASONRY TOWER BY ON - SITE INSPECTION AND OPERATIONAL MODAL TESTING

2014 ◽  
Author(s):  
A. Saisi ◽  
C. Gentile ◽  
L. Cantini
Keyword(s):  
Modal Testing ◽  
On Site Inspection ◽  
Masonry Tower ◽  
Earthquake Assessment

Tire Vibration Modes and Effects on Vehicle Ride Quality

1993 ◽  
Vol 21 (1) ◽  
pp. 23-39 ◽  
Author(s):  
R. W. Scavuzzo ◽  
T. R. Richards ◽  
L. T. Charek
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Operating Conditions ◽  
Modal Testing ◽  
Ride Quality ◽  
Vibration Modes ◽  
Inflation Pressure ◽  
Passenger Cars ◽  
Element Modeling ◽  
Road Surfaces

Abstract Tire vibration modes are known to play a key role in vehicle ride, for applications ranging from passenger cars to earthmover equipment. Inputs to the tire such as discrete impacts (harshness), rough road surfaces, tire nonuniformities, and tread patterns can potentially excite tire vibration modes. Many parameters affect the frequency of tire vibration modes: tire size, tire construction, inflation pressure, and operating conditions such as speed, load, and temperature. This paper discusses the influence of these parameters on tire vibration modes and describes how these tire modes influence vehicle ride quality. Results from both finite element modeling and modal testing are discussed.

Najczęściej występujące uszkodzenia fundamentów słupów linii elektroenergetycznych najwyższych napięć i sposoby ich napraw

2020 ◽  
Vol 29 (4) ◽  
pp. 461-473
Author(s):  
Joanna Witkowska-Dobrev ◽  
Anna Brzezińska ◽  
Olga Szlachetka
Keyword(s):  
High Voltage ◽  
Surface Defects ◽  
Power Line ◽  
Small Surface ◽  
On Site Inspection ◽  
Degree Of Damage ◽  
Extra High Voltage

The paper consists of the discussion of issues related to the durability of foundations of extra high voltage (EHV) power line poles and possibilities of their renovation. The research part is the diagnostics of selected foundations of the EHV line poles (400 kV) Wielopole–Noszowice. During the on-site inspection, it was found that there are chipping and small surface defects, and in some cases losses of the reinforcement cover without visible pits. Based on the degree of damage, the scope of non-structural repairs and anti-corrosive protection was determined, presenting the next stages of their implementation.

Stepped multisine modal testing using phased components

1990 ◽  
Vol 4 (2) ◽  
pp. 145-156 ◽  
Author(s):  
M.I. Friswell ◽  
J.E.T. Penny
Keyword(s):  
Modal Testing

Evaluation of gamma-spectrometry equipment for on-site inspection

2017 ◽  
Vol 312 (2) ◽  
pp. 377-383 ◽  
Author(s):  
J. L. Burnett ◽  
W. F. Mueller ◽  
B. D. Milbrath
Keyword(s):  
Gamma Spectrometry ◽  
On Site Inspection
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