Page 230 - Mechatronic Systems Modelling and Simulation with HDLs
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APPENDIX                                                            219


               P                    Power; parameter
               Q                    Quality function
               Q I                  Generalised inertial force
                i
               R                    Resistance; residuum; radius
               S                    Sensitivity
               T                    Energy
               U                    Voltage
                                    Piston-swept volume
               V D
               Greek letters
               α                    Ratio at a transmission element; angle of road gradient
               α ij                 Weighting factor for the Gauss–Legendre integration
               γ xy ,γ xz ,γ yz     Shear strains
                                    Laplace operator
               ε 0                  Dielectric constant
               ε r,eff              Effective, relative dielectric constant
                                    Strains
               ε xx ,ε yy ,ε zz
               ζ                    Variable for the approximation of continuous
                                       displacements
               η                    Efficiency
               λ                    Fuel mixture ratio
                                    Mass occupancy of element i
               µ i
               ν                    Poisson’s ratio
               	                    Elastic potential
               ρ                    Density
               τ xx ,τ yy ,τ zz ,
                 τ xy ,τ xz ,τ yz   Stresses
               φ                    Solution of a partial differential equation
               φ i                  Potential at node i
               ψ                    Magnetic flux
               ω                    Angular velocity

               Vectors / matrices
               a                    Acceleration matrix
               B                    Damping matrix
               C                    Capacitance matrix; material matrix
               F                    Force vector
               H                    Interpolation matrix
               I                    Inertia tensor
               J                    Jacobi operator
               J                    Global Jacobi matrix
               k                    Vector of the generalised, gyroscopic forces
               K                    Stiffness matrix
               L                    Inductance matrix
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