Vehicle dynamics-Ride modelling

Aim: To perform classification and generation of road profile according to ISO. Given data: Given power spectral density file can be viewed at the below link: Objective: Using the PSD data given, determine the road quality using the ISO classification. These are your deliverables: Plot showing ISO classification for roads…

Aim: To perform curve fitting of Pacejka formula using Matlab Given data: The given tire test data can be accessed in the below link:  https://drive.google.com/file/d/1eilYx6ixnnWH7-yT0BWUqkb93hsg0Tr8/view?usp=sharing Notations used: `Y(X)` = Cornering force, braking force, aligning moment `X` = Slip angle,skid ratio…

Aim: To study the variation of lateral force and aligning moment with slip angle. Given data or Inputs: Coefficeint of friction-`mu`=0.9 Normal load-`F_z` =5000N Length of contact patch-`l_t` =0.2m Cornering stiffness-`C_a` =5000`N/(rad)` Equations used: Lateral stiffness, `k_y`=`2*C_a/l_t^2` Critical slip, `alpha_c=(mu.F_z)/(2*C_a)`…

AIM: To study and simulate the 4WS model for steady state. OBJECTIVES: To derive the `delta_f/delta_r` formula for zero side slip. To plot the ratio against forward speed. To infer conclusions from the plot. Notations used: m= mass of vehicle `I_z`= yaw moment of inertia r= yaw rate u= longitudinal speed v= lateral…

Given Inputs:  An independent front suspension of a passenger car carries a mass (sprung mass) of 454.5 kg (or an equivalent weight of 100 lb). The suspension spring rate is 22 `(kN)/m`(125 `(lb)/"in"`.). The mass of the tire wheel assembly (unsprung mass) is 45.45 kg (or an equivalent weight of 100 lb and the equivalent…

Aim: To study the variation of velocity and displacement of vibrating body under damping. To find the natural and damped frequency of vibrating body. Notations used: `c`-Damping coefficeint in`(Ns)/m`. `m`- Mass in kg. `k`-Stiffness of spring in `N/m`. `x`-Displacement of the body in m. Background theory: Motion of…

AIM:   To calculate the natural frequencies of the vehicle at different conditions and to optimize the bump oscillation profile of vehicle.   OBJECTIVE: To calculate the following parameters, using the same front and rear spring rates for all three load conditions(Curb,Design and Gross vehicle weight).Front sprung…

Aim: To plot the pressure vs volume graph of an air standard Otto cycle using MATLAB To find the efficiency of air standard Otto cycle. Notations used: `v_s`-Swept volume `v_c`-Clearance volume `r_c`-Compression ratio `theta`-Crank angle Formulas used: Crank radius `a=(stroke)/2`. Crank pin radius `R=(stroke)/a` Clearance…