International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 05 Issue: 09 | Sep 2018
p-ISSN: 2395-0072
www.irjet.net
Design and Development of Multi-Linkage Suspension System in Heavy Vehicles Bhagwat Vishal N1, Deokar Monika B2, Ghatkar Omkar S3, Tunge Vaishnavi C4, Prof. Londhe B. C5 1,2,3,4 Student,
Department of Mechanical Engineering, S.N.D. College of Engineering & Research Centre, Yeola DistNashik, India. 5Asst. Professor,Department of Mechanical Engineering, SND College of Engineering & Research Centre, Yeola DistNashik, India. ----------------------------------------------------------------------------***-------------------------------------------------------------------------Abstract:- The occupants as well as vehicle structure suffers
vehicle to its wheel and allows relative motion between
severely when subjected to excessive fatigue loading if the
them. During cornering, the vehicle is subjected to
chassis is provided with direct transmission of the loads
undesirable effects such as pitch, roll or sway. These
carried by rolling wheels of the vehicle. Moreover if the front
effects are absorbed by the suspension system thereby
and the rear wheel axels are allowed to run in bearings
avoiding stress development in the vehicle frame and
rigidly attached to the frame, extremely uncomfortable rides
body. Variation in suspension system design occurs due to
would be resulted. To avoid the transmission of road effects
various reasons like air resistance, force distribution,
to the passengers while travelling in vehicles on uneven
space occupied, contribution to unsprung weight and total
ground, it is, therefore, necessary that the wheels and the
weight, load levelling cost, etc.
axels should be insulated from the frame. For this purpose
In recent automobiles the suspension system used is
suspension system is used .A good spring should have more
independent suspension system for light duty vehicles and
stiffness for better suspension.
dependent suspension system in heavy duty vehicles.
The current necessity in the automobile sector is mostly
Generally, in heavy duty vehicles leaf spring suspension
concerned with the comfort of the customer. The suspension
system is used because it is really simple to construct and
system is provided in vehicles to evenly support the weight of
strong. Although there are many advantages of modern
the vehicle, to safeguard the working parts of vehicle against
day leaf spring, but the major disadvantage is the ride
fracture caused due to severe stresses and ensuring the
comfort isn’t as great because of the inter-leaf friction
comfort of passengers by absorbing and damping the shocks.
between each leaf. To overcome this problem multi-link
Currently, in heavy duty vehicles Leaf-spring (Dependent)
(independent)
suspension system is used. Due to dependent suspension
independent suspension, all the road wheels are so
provided on rear wheels in vehicle the chances of accident
connected to the frame that rise and fall of any one wheel
are more. To overcome this failure Multi-link suspension
has no direct effect on the vehicle body. On the other hand,
system is introduced.
vehicle with independent suspension ensures continuous
suspension
system
is
preferred.
road adhesion and does not tilt on one side.
Keywords: Suspension system, Linkages, Leaf-spring, Vehicles, Fatigue loading, Comfort.
1.1 Problem Statement:
1. INTRODUCTION
i.
As per manufacturers of highway as well as offhighway equipment & Farmer.
The suspension system is the system of tires, tire air, spring, shock absorbers and linkages that connects a
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