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clear all close all clc load tire_test_data a =tire_test_data(:,1); Mz=tire_test_data(:,2); plot(a, Mz,'o') set(gca,'fontsize',18); title('Pacjecka magic formula'); xlabel('slip angle'); ylabel('Self-aligning torque Mz') hold on Bz=0.2083;Cz=2.17;Dz=60;Ez=-2.4;Shz=0;Svz=0; for i=1:101 a1(i)=(i-1)*0.14; phi_z=(1-Ez)*(a1(i)+Shz)…

clear all close all clc Fz=4000;mu=0.85;lt=0.2;kt=3.5e6;ky=2.5e6; Cx=lt^2*kt/2; C_alpha=lt^2*ky/2; for i=3:2:11 slip_angle=(i-1)*pi/180; for j=1:201, Skid_ratio=(j-1)*0.005; term1=((Cx*Skid_ratio)^2+(C_alpha*tan(slip_angle))^2 )^0.5; lc=mu*Fz*(1-Skid_ratio)*lt / (2*term1); if lc>=lt Fx(j)=Cx*Skid_ratio/(1-Skid_ratio);…

clear all close all clc Fz=3000;mu=0.8;lt=0.2;kt=4e6;ky=2.275e6; Cs=lt^2*kt/2; Ca=lt^2*ky/2; slip_angle=3*pi/180; is(1)=0;is(2)=0.15;is(3)=1.0; for i=1:3 temp(i)=sqrt((Cs*is(i))^2+(Ca*tan(slip_angle))^2); lc=mu*Fz*(1-is(i))*lt/(2*temp(i)); if lc>=lt Fy(i)=Ca*tan(slip_angle)/(1-is(i)) else Fy(i)=mu*Fz*Ca*tan(slip_angle)/temp(i)*(1…

clear all close all clc Ws_front=457;%in kg Ws_rear=381;%in kg Rr_front=2.50142221;%in N/mm Rr_rear=2.173586301;%in N/mm t_wb=0.100663634;%time lag in sec freq_front=sqrt(Rr_front*1000/Ws_front)/(2*pi);%in hertz freq_rear=sqrt(Rr_rear*1000/Ws_rear)/(2*pi);%in hertz time=(0:0.01:5);%in i=1; for t=(0:0.01:5) frontamp(i)=exp(-t)*sin(2*pi*freq_front*t);…

clear all close all clc damper_velocity=(0:1:500); FLS_compression_damping=2024.56; FLS_rebound_damping=6073.68; RLS_compression_damping=1972.42; RLS_rebound_damping=5917.41; FHS_compression_damping=695.60; FHS_rebound_damping=2086.80; RHS_compression_damping=570.97; RHS_rebound_damping=1712.96; i=1; for i=1:501 if i<=50…

clear all close all clc %a = 1.14; % distance c.g. to front axle (m) %L = 2.54; % wheel base (m) %m = 1500; % mass (kg) %Iz = 2420; % yaw moment of inertia (kg-m^2) %Caf = 54000*2; % cornering stiffness--front axle (N/rad) %Car = 47000*2; % cornering stiffness-- rear axle (N/rad) %FWD car a = 0.89; % distance c.g. to front…

OBJECTIVE: To create a suspension template using the template builder in ADAMS Car and run a Kinematic Analysis on it.   THEORY: MSC ADAMS is one of the most powerful tools in Multibody Dynamics, which focuses more on automobiles, especially on the suspension design. ADAMS Car provides us with a Template builder option,…

clear all close all clc Sxp=0.09;alpha_p=4;By=0.27;Cy=1.2;Dy=2900;Ey=-1.6; Shy=0;Svy=0;Bx=25;Cx=1.15;Dx=3200;Ex=-0.4;Shx=0;Svx=0; for i=1:4 Sx=(i-1)*0.03; for j=1:21 slip_angle(j)=(j-1)+0.00001; alpha=slip_angle(j); Sx_star=Sx/Sxp; alpha_star=alpha/alpha_p; S_star=((Sx_star)^2 + (alpha_star)^2) ^ 0.5; Sx_mod=S_star*Sxp;…