Modal Analysis Correlation of Battery Components and Battery Module Tata Consultancy Services

Format:

Book

Conference/Event

Author/Creator:

M, Charles Prabhakaran, author.

Contributor:

Ketha, Hari Krishna

Nienhuis, Michael D.

Patel, Lala Ram

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

The battery cell unit and battery module constitute the building blocks for the battery pack in an electric vehicle. It is important to rigorously understand the vibration induced response of the battery pack as it is a prerequisite for the safety of an electric vehicle. An accurate finite element (FE) model plays a key role in predicting the dynamic response of the battery pack simulation. In this paper, finite element analysis (FEA) results are compared with the experimental set up of the battery components and a 60-cell battery module. Using orthotropic elastic constants instead of isotropic properties to model the fiber reinforced polymer (FRP) made battery components produced better modal results correlation. Modal frequency values for the brick components have been improved by 25% to 50%. For the battery module, swapping of mode shape behavior is observed between finite element model and experimental results. A soft-bond contact is implemented at a challenging interface in the module to improve the modal correlation results. After modeling improvements, modal frequency error between test and FEA has been reduced to less than 20% for both battery cell components and battery module along with the supporting modal assurance criterion (MAC) correlation results for mode shapes of the battery module

Notes:

Vendor supplied data

Publisher Number:

2021-01-0766

Access Restriction:

Restricted for use by site license