Determination of lateral stresses in shocked solids: Simplified analysis of piezoresistance gauge data

1998 ◽  
Vol 83 (2) ◽  
pp. 747-753 ◽  
Author(s):  
R. Feng ◽  
Y. M. Gupta
Keyword(s):  
Gauge Data ◽  
Simplified Analysis

scholarly journals Simplified Analysis of Dynamic Structure–Ground Interaction

1975 ◽  
Vol 2 (3) ◽  
pp. 345-356 ◽  
Author(s):  
J. H. Rainer
Keyword(s):  
Dynamic Properties ◽  
Dynamic Structure ◽  
Elastic Half Space ◽  
Mode Shapes ◽  
Soil Material ◽  
Modal Damping ◽  
Flexible Foundations ◽  
Simplified Method ◽  
Simplified Analysis

A simplified method of analysis is presented for the determination of dynamic properties of single-story structures founded on flexible foundations. The general equations for natural frequency, mode shapes, and modal damping are applied to structures founded on an elastic half-space and on piles. The results of parameter studies, including the effects of hysteretic soil material damping, are presented for these two cases.

scholarly journals Tide prediction machines at the Liverpool Tidal Institute

2020 ◽  
Vol 11 (1) ◽  
pp. 15-29
Author(s):  
Philip L. Woodworth
Keyword(s):  
Tide Gauge ◽  
100Th Anniversary ◽  
Tide Gauge Data ◽  
Basic Principles ◽  
The World ◽  
Gauge Data ◽  
Set Up ◽  
The Uk ◽  
Made In

Abstract. The 100th anniversary of the Liverpool Tidal Institute (LTI) was celebrated during 2019. One aspect of tidal science for which the LTI acquired a worldwide reputation was the development and use of tide prediction machines (TPMs). The TPM was invented in the late 19th century, but most of them were made in the first half of the 20th century, up until the time that the advent of digital computers consigned them to museums. This paper describes the basic principles of a TPM, reviews how many were constructed around the world and discusses the method devised by Arthur Doodson at the LTI for the determination of harmonic tidal constants from tide gauge data. These constants were required in order to set up the TPMs for predicting the heights and times of the tides. Although only 3 of the 30-odd TPMs constructed were employed in operational tidal prediction at the LTI, Doodson was responsible for the design and oversight of the manufacture of several others. The paper demonstrates how the UK, and the LTI and Doodson in particular, played a central role in this area of tidal science.

Simplified analysis of wall-frame structures

1978 ◽  
Vol 5 (2) ◽  
pp. 262-273 ◽  
Author(s):  
O. Moselhi ◽  
P. Fazio ◽  
Z. Zielinski
Keyword(s):  
Orthotropic Plate ◽  
Rapid Determination ◽  
Frame Structures ◽  
Direct Integration ◽  
Lateral Loads ◽  
Actual Structure ◽  
Simplified Method ◽  
Internal Forces ◽  
Simplified Analysis

A simplified method is presented for the analysis of planar, uniformly perforated walls under the action of lateral loads. The method is based on replacing the perforated wall by an elastically equivalent orthotropic plate. The principle of minimum total complementary potential energy is then used to determine stresses and displacements in the equivalent plate. Internal forces in the actual structure are obtained by direct integration of these stresses. An example is worked out to illustrate the application of the method and its accuracy. Design curves are presented for the rapid determination of internal forces.

scholarly journals Considerations about the determination of γz coefficient

2013 ◽  
Vol 6 (1) ◽  
pp. 75-100
Author(s):  
D. M. Oliveira ◽  
N. A. Silva ◽  
C. F. Bremer ◽  
H. Inoue
Keyword(s):  
Reinforced Concrete ◽  
Structural Model ◽  
Steel Structures ◽  
Second Order ◽  
Order Effects ◽  
Simplified Models ◽  
Simplified Analysis ◽  
Second Order Effects ◽  
Conservative Values

In this work, the γz coefficient, used to evaluate final second order effects in reinforced concrete structures, is studied. At the start, the influence of the structural model in determination of γz coefficient is evaluated. Next, a comparative analysis of γz and B2 coefficient, usually employed to evaluate second order effects in steel structures, is performed. In order to develop the study, several reinforced concrete buildings of medium height are analysed using ANSYS-9.0 [1] software. The results show that simplified analysis provide more conservative values of γz. It means that, for structures analysed by simplified models, large values of γz don't imply, necessarily, in significant second order effects. Furthermore, it was checked that γz can be determinated from B2 coefficients of each storey of the structures and that, for all the analysed buildings, the average values of the B2 coefficients are similar to γz.

Simplified analysis techniques to support the determination of Shuttle aerodynamics

1983 ◽  
Author(s):  
W. SUIT ◽  
H. COMPTON ◽  
W. SCALLION ◽  
J. SCHIESS
Keyword(s):  
Analysis Techniques ◽  
Simplified Analysis

scholarly journals Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam

2021 ◽  
Vol 2102 (1) ◽  
pp. 012010
Author(s):  
J F Márquez Peñaranda ◽  
J R Cáceres Rubio ◽  
J D Palacios Pabón
Keyword(s):  
Structural Analysis ◽  
Solid Mechanics ◽  
Masonry Walls ◽  
Engineering Programs ◽  
Analysis Process ◽  
Continuous Beams ◽  
Internal Forces ◽  
Simplified Analysis ◽  
Different Levels

Abstract Springs are often taught in subjects of physics such as statics and solid mechanics belonging to civil engineering programs and mechanical engineering. This knowledge can be applied successfully in the modeling of structures and the consequent development of structural analysis. This paper presents the results of an investigation on physic-mathematical models which uses springs to replace complex connective conditions attempting to simplify the structural analysis process. The work focuses on the analysis of beams supported upon masonry walls, applying variations to the span lengths, sections and loads on them and considering realistic variations of the stiffness conditions required in the supports to meet the demands that these variations impose. For this, continuous beams with two spans with three types of section that are supported by walls that support different levels of restriction from different heights of the building of which they are part are modeled. It is concluded that there is an important influence of the slenderness of the beams and the degree of confinement of the supports upon the precision of the simplified model.

scholarly journals Determination of the absolute rate of sea level by using GPS reference station and tide gauge data

2005 ◽  
Vol 8 (3) ◽  
pp. 220-224
Author(s):  
Jiao Wenhai ◽  
Guo Hairong ◽  
Fu Yang ◽  
Wei Ziqing
Keyword(s):  
Sea Level ◽  
Tide Gauge ◽  
Reference Station ◽  
Absolute Rate ◽  
Tide Gauge Data ◽  
Gauge Data ◽  
The Absolute
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