Problem Set-1b Week 11Challenge : Basic Handling parameters

A car has a weight of 1900 lb front axle and 1552 lb on the rear with a wheelbase of 100.6 inches. The tires have the following cornering stiffness values Determine the following 1. Ackermann steer angles for 500, 200 and 50 ft radius 2. Understeer gradient 3. Characteristic speed 4. Lateral acceleration gain at 60 mph…

Aim:- To calculate the parameters for Anti-roll bar optimization. Objectives:- Calculate the following parameters: (i) Roll moment (ft-lb/g) (ii) Roll gradient (deg/g) (iii) Load transfer due to roll or elastic component (lb/g) (iv) Front roll stiffness (ft-lb/deg) at wheel center level  (v) Front anti-roll spring…

Formulas in excel:- 1. Throttle acceleration per g = (throttle acc.)/(acc. due to gravity) 2. Load transfer = [(total weight)*(throttle accn)*(CG height)]/[(wheelbase)*g] 3. Front axle weight (after throttle)  = (static front axle weight) - (load transfer) 4. Rear axle weight (after throttle) = (static rear axle weight)…

Aim:- Create a Rankine Cycle Simulator using MATLAB. Objective:- Calculate the state points of the Rankine Cycle based on user inputs.  plot the corresponding T-s and h-s plots for the given set of inputs. Outputs:- Net work output Back work ratio Given Inputs Value:- Turbine Inlet temperature = 400° C Turbine…

Aim:-  To write the matlab code to extract the NASA THERMO.dat file & obtain different species. Objects:- Write a MATLAB code to reading NASA thermodynamic data file. Extract the co-efficients Calculate the molecular weight of each species and display in the command window. Save the plots as images with appropriate…

Aim:-To Write a code in MATLAB to optimize the stalagmite function and also the globle maxima of the function. Genetic Algotithm:- GA is the process of natural selection starts with the selection of fittest individuals from a population. They produce offspring which inherit the characteristics of the parents…

Aim:- To solve the ODE equation of a pendulam. Objective:- Write a program that solves the ODE which represents the equation of motion of a simple pendulum with damping, also create the animation of it. Theory:- A simple pendulum consists of a ball (point-mass) m hanging from a (massless) string of length L and…

Problem Objective:- Perform hardpoint tuning to achive the target accelaration and braking pitch gradient, to simulate this take Double wishbone suspension at the front & multilink suspension at the rear. Adams plot showing effect of tuning (overlay curves). Completed Excel Sheet. Project Target & Constraints:-…

1) Open multi link suspension 2) Run Static load simulation 3) Part 1: Baseline analysis:- a) Braking load From postprocessor plot,  brake steer is 205 deg/m, & rear wheel toe out during braking. c)Traction steer simulation From postprocessor plot, Traction steer is 19.6deg/m, & rear wheel toe out during braking.…

1) Open SLA Front suspension 2) Default Hard points 3) Run parallel wheel travel simulation 4) Postprocessor result for default hard point a) Caster angle :- b) Caster moment arm :- c) KPI angle :- d) Steer axis offset (resultant) :- e) Steer axis longitudinal offset :- f) Scrub radius :- 5) Now hard point modified…

1. Graph, Styles, titles, labels 2. Plot config file i)Export ii) Import 3. Export Numerical Data i) Notepad ii) Spreadsheet iii) HTML   4. Numerical Data Import 5. Animation, camera & video export  

1. Double wishbone front suspension assy,

Attached

Given dataWheel Base=2700mm=2.7mSpeed=60mph=26.8224mpsSprung Mass frequency design front(ff)=1.15Hz 1) Sprung Mass frequency design Rear(fr):-Time lag= wb/speed=2.7/26.8224=0.101sTime lag front=1/1.15=0.869So, Tf=Tr+T_lag0.869=Tr+0.101Tr=0.768Now as we know Tr=1/fr0.768=1/frfr=1.30Hz 2)Sprung Mass frequency design front(ff)…

  ANS_1:-it is because of the motion ratio, where the value of (b) always grater than (a), so the motion ratio is always less than 1.Because of this the wheel rate(kw) is always different from spring rate(ks).kw=ks(a/b)^2b=distance between trailing arm pivot to the wheel mtga=distance between trailing arm pivot to…

Ans_1:- a) Caster = 5.37 deg b) Mechanical Trail =9.4mm c) Kingpin Inclination =10 deg d) Scrub Radius =32.36mm e) Kingpin Lateral offset=85.26mm Ans_2:-Restoring moment = 68800 N-mm Ans_3:- dy(Wb,Lb)=35 dz(Wb,Lb)=200

Ans:-  IC VERTICAL= 239 IC HORIZONTAL = -851 RC Center height = -225