Thermal Engineering
December 8, 2016Specific Heat of a Substance Q = m . C . Δt Q = heat transfer in kJ, m =... View Article
Archives
Manufacturing Processes
December 8, 2016Resistance Welding (Electric Resistance Welding) $H = I^2 RT$ Some terms, H = heat generated in joules, I = current... View Article
Design Process
December 8, 2016Design Terminology e = Strain δl = change in length of a body, mm l = original length of a... View Article
Power Transmission Devices
December 8, 2016Belt Drives Some terms: Consider a belt drive, d = diameter of the driving pulley, mm D = diameter of... View Article
Centre of Gravity and Moment of Inertia
December 8, 2016The centre of mass of n Point Masses Moment = (Mass) . (Lever arm) $\ov{x} = {∑↙{i=1}↖n m_i x_i}/{∑↙{i=1}↖n m_i}$... View Article
Area, Volume, Mean and Root Mean Square Values
December 8, 2016Representation of area as a double integral Type I: Area enclosed by plane curves expressed in Cartesian co-ordinates Area =... View Article
Multiple Integrals
December 8, 2016Double integration Representation of area as a double integral: $A = lim↙{δx→0} ∑↙{x=a}↖{x=b} y . δx$ Expressed in integral notation... View Article
The Cone and the Cylinder
December 8, 2016Cone with vertex at the origin $ax^2 + b y^2 + c z^2 + 2 fyz + 2 gzx +... View Article
Sphere
December 8, 2016Equations of sphere in different forms (A) Centre and radius form $(x – a)^2 + (y – b)^2 + (z-c)^2... View Article
Co-ordinate System, Plane, Straight Line and Solids of Revolution
December 8, 2016Relations between three coordinate systems Relations between cartesian and spherical polar system of coordinates are x = r sinθ cosϕ... View Article