Tata Technologies, India
Posters & Accepted Abstracts: Adv Automob Eng
This paper describes powertrain mounting stiffness calculation which gives communize outer geometry for petrol and diesel powertrain and two different stiffness sets by achieving desired target of elastic and torque roll axis alignment and mode decoupling. First petrol 3 cylinder engine powertrain mount and stiffness is finalized by six degree of freedom calculations; next diesel four cylinder engine powertrain stiffness is relatively changed with respect to petrol stiffness such that to achieve desired target. Primary reasons for two sets of stiffness for petrol and diesel powertrain are weight, number of cylinder and inertia property difference. Lastly, both achieved stiffness are checked from manufacturing feasibility and accommodated in same mount outer geometry and checked in layout for packaging constraint. Same outer mount geometry helps maintain modularity, reduce FEA and packaging lead time and cost.
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