Its about Chapter 17:Engineering Fundamentals.
It has 5 main parts: Statics,Dynamics, Thermodynamics,
Electrical Circuits, Economics.
Here are the contents:
1. Statics
Equilibrium Equations:
Translation: ∑F_x = 0, ∑F_y = 0, ∑F_z = 0
Rotation: ∑M_x = 0, ∑M_y = 0, ∑M_z = 0
Internal Forces:
Axial Force: Force acting along the longitudinal axis of a member.
Shear Force: Force acting parallel to the cross-section of a member.
Bending Moment: Moment acting perpendicular to the cross-section of a member.
Torsion: Twisting moment acting on a member.
Method of Joints:
Analyze forces at each joint, assuming the joint is in equilibrium.
Use the equilibrium equations to solve for unknown forces.
Method of Sections:
Cut through the structure to isolate a portion of interest.
Apply the equilibrium equations to the isolated portion.
2. Dynamics
Kinematics:
Velocity: v = dx/dt
Acceleration: a = dv/dt
Displacement: x = ∫v dt
Kinetics:
Newton's Second Law: F = ma
Work: W = ∫F dx
Kinetic Energy: KE = 0.5 * m * v^2
Potential Energy: PE = m * g * h
Conservation of Energy: ΔKE + ΔPE = 0
Rotational Motion:
Angular Velocity: ω = dθ/dt
Angular Acceleration: α = dω/dt
Torque: τ = I * α
Rotational Kinetic Energy: KE_rot = 0.5 * I * ω^2
3. Circuit Analysis
Complex Numbers:
Represent AC quantities as complex numbers (e.g., V = V_rms * e^(jθ)).
Impedance: Z = R + jX (where R is resistance and X is reactance).
Admittance: Y = 1/Z
Circuit Theorems:
Thevenin's Theorem: Any linear circuit can be replaced by a voltage source in series
with a resistor.
Norton's Theorem: Any linear circuit can be replaced by a current source in parallel
with a resistor.
Superposition Theorem: In a linear circuit with multiple sources, the total response is
the sum of the responses due to each source acting alone.
4. Thermodynamics
Thermodynamic Properties:
Temperature: A measure of the average kinetic energy of the molecules in a
substance.
Pressure: Force per unit area.
Volume: The amount of space occupied by a substance.
Internal Energy: The total energy stored within a system.
Enthalpy: H = U + PV
Thermodynamic Cycles:
Rankine Cycle: A cycle used in steam power plants.
Otto Cycle: A cycle used in gasoline engines.
Diesel Cycle: A cycle used in diesel engines.
Entropy:
A measure of the disorder or randomness of a system.
The second law of thermodynamics states that the entropy of an isolated system always
increases or remains constant.
Material Science
Stress and Strain:
Normal Stress: σ = F/A (force per unit area)
Shear Stress: τ = F/A (force per unit area acting parallel to the surface)
Normal Strain: ε = ΔL/L (change in length per unit length)
Shear Strain: γ = Δx/L (change in angle)
Material Models:
Linear Elastic: Stress is proportional to strain within the elastic limit.
Plastic: Material deforms permanently after yielding.
Viscoelastic: Material exhibits both elastic and viscous behavior.
Solid Mechanics
Beam Bending:
Bending Moment Diagram: A plot of bending moment along the length of a beam.
Shear Force Diagram: A plot of shear force along the length of a beam.
Deflection Equation: Relates the deflection of a beam to the applied loads and beam
properties.
Column Buckling:
The phenomenon of a column bending under compressive load.
Critical load: The load at which buckling occurs.
Fluid Mechanics
Fluid Properties:
Density: Mass per unit volume.
Viscosity: Resistance to flow.
Surface Tension: Force per unit length acting at the surface of a liquid.
Capillarity: The ability of a liquid to rise in a narrow tube.
Fluid Statics:
Hydrostatic Pressure: Pressure exerted by a fluid at rest.
Buoyancy: The upward force exerted on an object immersed in a fluid.
Fluid Dynamics:
Continuity Equation: Mass flow rate is conserved in a pipe.
Bernoulli's Equation: Relates pressure, velocity, and elevation in a fluid.
Reynolds Number: A dimensionless parameter that indicates whether flow is laminar
or turbulent.
Economics
Engineering Economics:
Time Value of Money: The concept that money has different values at different points in time
due to interest.
Present Worth: The equivalent value of a future amount of money at the present time.
Future Worth: The equivalent value of a present amount of money at a future time.
Annual Worth: The equivalent annual value of a series of cash flows.
Internal Rate of Return (IRR): The discount rate that makes the net present value of a project
equal to zero.
Cost-Benefit Analysis:
A method for evaluating the economic feasibility of a project by comparing its benefits to its
costs.
Depreciation:
The allocation of the cost of a fixed asset over its useful life.
