Need for Accurate Initial Conditions to Simulate Flexible Structures in Motion

By April 7, 2015October 22nd, 2018Flexible Bodies, Multibody Dynamics, Research

Need for Accurate Initial Conditions to Simulate Flexible Structures in Motion

Nelson Woo, Brant Ross, and Ryan West, Transactions of the Korean Society of Mechanical Engineers C: Industrial Technology and Innovation, April 2015, Volume 3, No. 2, pp 97-106.

Abstract

Flexible structures are often important components of mechanical assemblies in motion. A flexible structure sometimes must go through assembly steps that cause it to be in a pre-stressed condition when in the starting position for operation. A virtual prototype of the assembly must also bring the model of the flexible structure into the same pre-stressed condition in order to obtain accurate simulation results. This case study is presented regarding the simulation of a constant velocity joint, with a focus on the flexible boot. The case study demonstrates that careful definition of the initial conditions of the boot and flexible body contacts yields high-fidelity simulation results.

How Multibody Dynamics Simulation Technology is Used

RecurDyn can simulate complex assemblies and structures such as can be found in a CV joint. Tools within RecurDyn can aid in the careful replication of initial, pre-loaded conditions. The initial conditions have a large effect on the fidelity of the simulation.

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Related Case Studies

Multibody Dynamics Software Used:

RecurDyn/FFlex

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