Engineering formulas

In this paper, an improved version of Differential Evolution algorithm, called iDE, is introduced to solve design optimization problems of composite laminated beams. The beams used in this research are Timoshenko beam models computed based on analytical formula.

11p vifilm 24-09-2024 8 1   Download

In this paper, empirical formula for the shear resistance determination of trapezoid concrete dowel in shallow concrete-steel composite floor-beam is formed. This established process is based on the failure mechanism and the ultimate loading of push-out tests.

9p vifaye 20-09-2024 1 1   Download

The aim of this research is to improve the reliability of the dynamic formula. This research program will concentrate on the proposal of a correction factor to adjust for this dynamic component similar to the damping parameter used in the Wave Equation Analysis and validate its reliability experimentally and theoretically. Similarly, the issue of the variation in the hammer energy delivered to pile needs to be improved by the adoption of new technology and validate experimentally.

207p runthenight07 01-03-2023 6 3   Download

In this research the effect of ground proximity on the lift, drag and moment coefficients of inverted, two-dimensional aerofoils was investigated. The purpose of the study was to examine the effect ground proximity on aerofoils post stall, in an effort to evaluate the use of active aerodynamics to increase the performance of a race car. The aerofoils were tested at angles of attack ranging from 0° – 135°. The tests were performed at a Reynolds number of 2.16 x 105 based on chord length. Forces were calculated via the use of pressure taps along the centreline of the aerofoils.

144p runthenight07 01-03-2023 8 4   Download

This article suggests a simple parameterization for the gas bubble rising velocity as a function of the volume-equivalent bubble diameter; this parameterization does not require prior knowledge of bubble shape. This is more convenient than previously suggested parameterizations because it is given as a single explicit formula.

8p minhxaminhyeu4 26-06-2019 18 0   Download

Webster master catalog covers many of the standard sizes and styles of products. Webster’s in-house engineering and manufacturing personnel understand high volume production and custom designed chains giving our customershigh   quality, competitively priced chains specifically suited to each application. For additional support in selecting, identifying or sizing a chain, vibrating conveyor or commercial casting contact our customer service department.

241p damngamngui_24 26-05-2015 36 6   Download

Engineering PhD thesis: Study identified a number of parameters of rain contribute to improve traffic formula designed small drainage structures on roads in Vietnam climatic conditions for theoretical research, analysis essence, the proposed principles, methods, formulas determine the parameters of rain used in the flow calculation formula designed small drainage structures on roads in Vietnam conditions.

38p nganhanggddt2014 01-07-2014 57 6   Download

“A ‘formula’ is something that once applied to what it is suppose to, works in any region, country or place. It’s like the formula to make cars, the formula to make light bulbs, the formula to construct houses . . . You can always tweak or change the details but the ‘core’ formula remains the same. Did you know that the airline industry has been using the same “tube and wing” design to construct airplanes for over 100 years? Why? “Tube and Wing” is a proven formula, the rest are just tweaks and changes (Type of aircraft engine, color of aircraft, number of seats etc)....

51p nhatkyvodanh 10-08-2012 54 4   Download

In this formula, a is a constant which expresses the overhead. For example, if a = 0.1 and n = 4, then P 3, so the performance of a multiprocessor consisting of 4 CPUs is approximately 3.

0p kimku1 28-08-2011 56 9   Download

Isomers: Compounds with the same molecular formula but different structural formulas. Different compounds that have the same molecular formula – but differ in their connectivity. Isomers that differ in the way their atoms are arranged in space

41p 3dagkhoa 28-10-2010 120 29   Download

Spillways are familiar hydraulic structures built across a stream to control the water level. This chapter emphasizes the classification of weirs and spillways as well as the application of hydraulic formulas for designing their shape and dimensions.

0p haivan 16-03-2009 199 14   Download

The term "transition" is introduced whenever a channel's cross-sectional configuration (shape and dimension) changes along its length. Beside it, in the water control design, engineers need to provide for the dissipation of excess kinetic energy possessed by the downstream flow. Formulas for design calculation of transition works and energy dissipators are presented in this chapter

0p haivan 16-03-2009 283 12   Download