As indicated in the discussion of the general bending equation, the second moment of area is needed if we are to relate the stress produced in a beam to the applied bending moment. Mathematics in action Second moment of area As an illustration of the derivation of a second moment of area ...
The second topic in the present paper covers the influence on torque distribution of various formulae for calculating second moments of area. A solution, which takes into account the shear of the teeth, is highlighted. 展开 关键词: spline coupling teeth stiffness second moment of area ...
An accurate numerical method for the solution of the second moment equation is presented. This may be applied to scalar wavefields in a wide variety of scattering regimes and inhomogeneous waveguides, for many of which explicit analytical solutions cannot be obtained. The method is applied here to...
second moment matrix二阶矩矩阵 1.Inspired by image salient area detection model,A model for extracting local invariant feature is proposed based on salient measurement of local second moment matrix.利用二阶矩矩阵对尺度空间下局部图像的各向异性程度的估算作用,在图像尺度空间中对局部特征提取区域的信息显著...
6)second ordersecond moment二阶二次矩 1.Basedonthefirst orderreliabilitytheory ,amethodofthesecond ordersecond momentreliabilityin dexisproposed .然后利用一次二阶矩方法算得的可靠性指标 ,并结合结构功能函数在设计验算点处的主曲率 ,给出了二阶二次矩可靠性指标的计算公式 。 延伸阅读 二阶电路 见暂态时域...
square number (redirected fromsecond power) Dictionary Thesaurus Wikipedia square number [′skwer ′nəm·ber] (mathematics) A number that is derived by squaring an integer. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. ...
The objective of the research reported in this paper is to formulate bending moment equation by using beam column theory and to study the behavior of solid circular section and hollow circular section of bridge pier. The optimization in area of cross section is done by providing a hollow ...
Equation (1) signifies the second moment of the velocity difference corresponding with eddies of size r. Numerous expressions can be derived from Equation (1) for different flow configurations. For example, 𝐷𝑖𝑗(𝐱,𝐫,𝑡)Dij(x,r,t) is independent of 𝐱x in homogeneous turbulence...
There are two numerical measures of the inertia of a body: itsmass, which governs its resistance to the action of a force, and itsmoment of inertiaabout a specified axis, which measures its resistance to the action of atorqueabout the same axis.SeeNewton’s laws of motion. ...
To convert the proportionality in Newton's Second Law into an “equality,” we need to introduce a constant of proportionality. To phrase Equation (3.1) in terms of an equality, suppose there exists a set of units for which a force F1 accelerates the mass m1 by a1. Then, Newton's ...