SPRING MASS DAMPER IMPACTOR AND DYNAMIC RELAXTION WITHOUT

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SPRING MASS DAMPER IMPACTOR AND DYNAMIC RELAXTION WITHOUT CONTACT DAMPING WITHOUT DYNAMIC RELAXATION WITH

SPRING MASS DAMPER IMPACTOR AND DYNAMIC RELAXTION WITHOUT CONTACT DAMPING WITHOUT DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 EXPLICIT METHOD WITHOUT DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 IMPLICIT METHOD WITH DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 EXPLICIT METHOD WITH DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 IMPLICIT METHOD STEP 1 Mass 392. 5 kg Spring Rate 15, 386. 0 N/m Gravity Applied 9. 8 m/s^2 Reaction Force = m*gravity = 392. 5*9. 8 = 3846. 5 N WITH CONTACT DAMPING WITHOUT DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 EXPLICIT METHOD WITHOUT DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 IMPLICIT METHOD WITH DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 EXPLICIT METHOD WITH DYNAMIC RELAXATION WITH LT CRITICAL DAMPING 1000. 0 IMPLICIT METHOD Impactor NB e-explicit method i-implicit method wodr-without dynamic relaxation wdr-with dynamic relaxation ltcd-less than critical damping wocd-without contact damping wcd-with contact damping Impactor Speed 1 m/s Mass Z Displacement Gravity Applied Reaction Force

STEP 2 Mass 392. 5 kg Impactor Mass 282. 6 kg Spring Rate 15,

STEP 2 Mass 392. 5 kg Impactor Mass 282. 6 kg Spring Rate 15, 386. 0 N/m (F = k*x) Static Displacement F/k = (392. 5+282. 6)*9. 8/15386 = 0. 43 m Gravity Applied 9. 8 m/s^2 Reaction Force = m*gravity = (392. 5+282. 6)*9. 8 = 6616. 0 N Impactor Speed 1 m/s Gravity Applied Mass Reaction Force

GRAVITY – without dynamic relaxation GRAVITY – with dynamic relaxation Contact Damping (ltcd) Damper

GRAVITY – without dynamic relaxation GRAVITY – with dynamic relaxation Contact Damping (ltcd) Damper Part Modelled Damping (ltcd)

WODR LTCD WOCD EXPLICIT WODR LTCD WOCD IMPLICIT WODR LTCD WCD EXPLICIT WODR LTCD

WODR LTCD WOCD EXPLICIT WODR LTCD WOCD IMPLICIT WODR LTCD WCD EXPLICIT WODR LTCD WCD IMPLICIT

WITHOUT DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING DISPLACEMENT VS TIME Displacement of Mass

WITHOUT DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING DISPLACEMENT VS TIME Displacement of Mass Attached to Spring FORCE VS TIME Force at Ground

WITHOUT DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING FORCE VS TIME Contact Force Between

WITHOUT DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING FORCE VS TIME Contact Force Between Mass and Impactor

STEP 1 WDR LTCD WOCD EXPLICIT STEP 2 WDR LTCD WOCD EXPLICIT STEP 1

STEP 1 WDR LTCD WOCD EXPLICIT STEP 2 WDR LTCD WOCD EXPLICIT STEP 1 WDR LTCD WOCD IMPLICIT STEP 2 WDR LTCD WOCD IMPLICIT

STEP 1 WDR LTCD WCD EXPLICIT STEP 2 WDR LTCD WCD EXPLICIT STEP 1

STEP 1 WDR LTCD WCD EXPLICIT STEP 2 WDR LTCD WCD EXPLICIT STEP 1 WDR LTCD WCD IMPLICIT STEP 2 WDR LTCD WCD IMPLICIT

WITH DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING DISPLACEMENT VS TIME Displacement of Mass

WITH DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING DISPLACEMENT VS TIME Displacement of Mass Attached to Spring FORCE VS TIME Force at Ground

WITH DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING FORCE VS TIME Contact Force Between

WITH DYNAMIC RELAXATION WITH AND WITHOUT CONTACT DAMPING FORCE VS TIME Contact Force Between Mass and Impactor

WITH AND WITHOUT DYNAMIC RELAXATION WITH CONTACT DAMPING Displacement of Mass Attached to Spring

WITH AND WITHOUT DYNAMIC RELAXATION WITH CONTACT DAMPING Displacement of Mass Attached to Spring FORCE VS TIME Force at Ground