AKASH C DILEEP (STM20ME004)

RAKESH R SHENOY (STM20ME016)

ANAND V V (STM20ME007)

ADARSH PREMAN (STM20ME003)

The suspension svstem is used to isolate the chassis from the shock loads due to
iregularities of the road surface and improve the ride comfort, stability, and safety of heavy
duty trucks without compromising vehicle handling. This system utilizes leaf springs, a
specialized component uniquely for automotive suspension system to efficiently support
vertical loads and dampen road-induced vibrations. Through static, modal, and harmonic
analyses, we aim to optimize the leaf spring's performance, ensuring safe stress levels,
payload capacity, and resonance frequencies.It is subjected to millions of load cycles leading
to fatigue failure. Static analysis gives the safe stress and with corresponding pay load of the
leaf spring and also to research the behavior of structures under practical situations. The loads
coming from the floor and the chassis are taken by the suspension. Constraint equations and
couples are used to connect various regions of the suspension system. The loads are applied
on the leaf spring of the suspension system.
Static analysis is performed to study the deflection of the leaf spring under static
loads. This involves applying a static load to the leaf spring and analyzing its deformation and
stress distribution.Modal analysis is conducted to identify the natural frequencies and mode
shapes of the leaf spring. By applying dynamic loads, modal analysis helps determine how the
spring vibrates and at what frequencies.Harmonic analysis is performed to study the response
of the leaf spring to harmonic excitation.This involves applying harmonic loads at different
frequencies to observe how the spring responds to each frequency.