4Bar Linkage Calculator

8/13/2019 4Bar Linkage Calculator

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4 Bar Linkage Calculator v3.0

Vehicle Specifications: Suspension Geometry: Geometry Summary:Wheelbase 108.5 in pper Links x y z Static Anti-Squat 95 %

Tire Diameter 9.50 in !rame "n# $.00 1.00 $.00 in &ll 'enter (ei)ht $* in

Tire &llin) a#ius 19.*5 in Axle "n# 0.00 $.00 $8.00 in &ll Axis An)le $ #e)rees +&ll ,erste

/ehicle ' (ei)ht .00 in Lo!er Links x y z 2nstant 'enter 3-Axis 11 in

/ehicle 4ass $00 lb !rame "n# *.00 .00 $8.00 in 2nstant 'enter 6-Axis 7 in

!r&nt nsrun) 4ass 800 lb Axle "n# .00 $$.00 19.*5 in

ear nsrun) 4ass *00 lb

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4 Bar Linkage Calculator v3.0 = e>erence

/ehicle ' .00

Srun) 4ass ' 1.9$ in

Anti-Squat ' 7.85 in

Suspension Geometry:

pper Links x y z

!rame "n# $.000 1.000 $.000 in

Axle "n# 0.000 $.000 $8.000 in

/ect&r $.000 11.000 .000 in

:en)th .0* in

nit /ect&r 0.991 0.$$8 0.11* 1.0000

2ntercet -5.818$ $.0000 $8.0000 in

&ll ?&int -5.818$ 0.0000 $*.$*$* in

!&rce $118.099 lb +Tensi&n

!&rce /ect&r 017.77 1078.*50 **0.55 lb

/ertical Sl&e 0.8 in@in

(&riz&ntal Sl&e 0.1$50 in@in

Lo!er Links x y z

!rame "n# *.000 .000 $8.000 in

Axle "n# .000 $$.000 19.*50 in

/ect&r .000 -19.000 8.$50 in



Trael Am&unt 0.00 in Trael 0.00 in ini&n an)le chan)e 0.00

Static Geometry: Bump Geometry:

pper Links x y z pper Links x y z

!rame "n# $.000 1.000 $.000 in !rame "n# $.000 1.000 $.000 in Axle "n# 0.000 $.000 $8.000 in Axle "n# 0.000 $.000 $8.000 in

/ect&r $.000 11.000 .000 in /ect&r $.000 11.000 .000 in

:en)th .0* in :en)th .0* in

Searati&n 8.**9 Searati&n 8.**9

0.000 in

nit /ect&r 0.991 0.$$8 0.11* 1.0000 nit /ect&r 0.991 0.$$8 0.11* 1.0000

2ntercet -5.818$ $.0000 $8.0000 in 2ntercet -5.818$ $.0000 $8.0000 in

&ll ?&int -5.818$ 0.0000 $*.$*$* in &ll ?&int -5.818$ 0.0000 $*.$*$* in

/ertical Sl&e 0.8 in@in /ertical Sl&e 0.8 in@in

(&riz&ntal Sl&e 0.1$50 in@in (&riz&ntal Sl&e 0.1$50 in@in

:in< !&rce 55 lb :in< !&rce 55 lb

Lo!er Links x y z Lo!er Links x y z

!rame "n# *.000 .000 $8.000 in !rame "n# *.000 .000 $8.000 in

Axle "n# .000 $$.000 19.*50 in Axle "n# .000 $$.000 19.*50 in

/ect&r .000 -19.000 8.$50 in /ect&r .000 -19.000 8.$50 in

:in< :en)th 8.7$ in :in< :en)th 8.7$ in

nit /ect&r 0.908 -0.90* 0.1797 1.0000 nit /ect&r 0.908 -0.90* 0.1797 1.0000

2ntercet 5.9* $.$95 19.188 in 2ntercet 5.9* $.$95 19.188 in

&ll ?&int 5.9* 0.000 $9.0 in &ll ?&int 5.9* 0.000 $9.0 in

/ertical Sl&e -0.18 in@in /ertical Sl&e -0.18 in@in

(&riz&ntal Sl&e 0.18*5 in@in (&riz&ntal Sl&e 0.18*5 in@in

:en)th0-:en)th

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4 Bar Linkage Calculator v3.0 Accelerati&n 7.00 )

"aterial Selection:

pper Links Lo!er Links,utsi#e Diameter 1.500 in ,utsi#e Diameter 1.*50 in

Wall Thic<ness 0.188 in Wall Thic<ness 0.$50 in

4aterial se# Alum $0$-T7 4aterial se# Steel 10T&# "n# ate# :&a# 55000 lb &# "n# ate# :&a# 55000 lb

4&#ulus &> "lasticity 10500000 si 4&#ulus &> "lasticity $9*00000 si

Ciel# Stren)th 50000 si Ciel# Stren)th 110000 si

Density 0.1000 lbm@in Density 0.$80 lbm

4&ment &> 2nertia 0.1*0 in 4&ment &> 2nertia 0.1 in

Area 0.**5 in$ Area 1.1*8 in$

?yiel# 8*5 lb ?yiel# 1$9591 lb

?buc<lin) 15188 lb ?buc<lin) $$0* lb

?ben#in) 1$ lb ?ben#in) 5$1 lb

:in< :en)th .0*5 in :in< :en)th 8.719 in

:in< Wei)ht $.7 lb :in< Wei)ht 17.$* lb

:in< !&rce $118 lb +Tensi&n :in< !&rce -$8 lb +

!.S. Ciel# 1.$1 +lin< stretchin) !.S. Ciel# $.9 +lin

!.S. Buc<lin) 0.* +lin< buc<lin) un#er bra<in) !.S. Buc<lin) 0.95 +lin

!.S. Ben#in) 0.7 +s&me;hat irreleant >&r an ??" lin< !.S. Ben#in) 1.78 +lin!.S. &# "n# 1.*1 +r&# en# brea<in) !.S. &# "n# 1.$ +r&#

"aterial Specifications:

"lastic 4&#ulus Ciel# Density

+si Stren)th +:bs@in

Alum $0$-T7 10500000 50000 0.1000

Alum 7071-T7 10000000 9900 0.09*5

Alum *0*5-T7 1000000 *$00 0.10$0

Steel 1018 $9000000 50000 0.$80 '&l# Dra;n

Steel 10E $9*00000 7100 0.$80 E&rmalize#

Steel 10T $9*00000 110000 0.$80 Water Fuenche# an# Temere#

Steel 0E $9*00000 11000 0.$80 E&rmalize#

Steel 0T $9*00000 170000 0.$80 ,il Fuenche# G Temere#

Titanium 7Al-/ 17500000 1$8000 0.1700 7% Aluminum % /ana#ium



4 Bar Linkage Calculator v3.0



'reate# $00.1$.0

by

Dan Barcr&>t

tria)e#H)mail.c&m

mailto:[email protected]




4 Bar Linkage Calculator v3.0Si#e Vie! $op Vie!

!r&nt Tire ear Tire 2' Trace er 2n>inity $1*0 ,>>set

an)le x z x z x z ear Axle .00 er :in<

0 108.50 0.00 0.00 0.00 $.00 $.00 x z x

15 10.9 0.7* 5.11 0.7* 11.00 5.7 0.00 $1.*5 $.000 98.7 $.75 9.88 $.75 2' Trace :&;er 1.00 $1.8 0.00

5 9.5 5.*8 1.9* 5.*8 x z 1.* $0.*5 $.00

70 91.0 9.88 1*.10 9.88 *.00 $8.00 $.00 19.*5 0.00

*5 89.$ 1.7 19.08 1.7 11.00 5.7 1.* 18.*5 2' Trace

90 88.*5 19.*5 19.*5 19.*5 Anti-Squat :ine 1.00 18.0$ x

105 89.$ $.87 19.08 $.87 x z 0.00 1*.*5 0.00

1$0 91.0 $9.7 1*.10 $9.7 0.00 0.00 -1.00 18.0$ -5.8$

15 9.5 .*$ 1.9* .*$ 11.00 5.7 -1.* 18.*5 -5.8$

150 98.7 7.85 9.88 7.85 108.50 5.11 -$.00 19.*5 0.00

175 10.9 8.8 5.11 8.8 Anti-Squat ' -1.* $0.*5 :&;er :in<

180 108.50 9.50 0.00 9.50 x z -1.00 $1.8 x

195 11.71 8.8 -5.11 8.8 -$0.00 7.85 0.00 $1.*5 *.00$10 118.8 7.85 -9.88 7.85 1$0.00 7.85 .00

$$5 1$$.* .*$ -1.9* .*$ 100% AS :ine *.00

$0 1$5.70 $9.7 -1*.10 $9.7 x z .00

$55 1$*.58 $.87 -19.08 $.87 0.00 0.00 2' Trace :

$*0 1$8.$5 19.*5 -19.*5 19.*5 108.50 7.85 x

$85 1$*.58 1.7 -19.08 1.7 &ll Axis *.00

00 1$5.70 9.88 -1*.10 9.88 x z 5.95

15 1$$.* 5.*8 -1.9* 5.*8 -5.8$ $*.$* 5.95

0 118.8 $.75 -9.88 $.75 0.00 $*.* *.00

5 11.71 0.7* -5.11 0.7* 5.95 $9.0

70 108.50 0.00 0.00 0.00

:&;er :in<s :&;er :in<s er :in<s

ear Tire er :in<s :&;er :in<s 2'

100% AS :ine &ll 'enter 2nstant 'enter e



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1.00 9.00$.00 8$.00

-1.00 7*.00

-$.00 *8.00

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$.00 8$.00

0.00 80.00

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-.00 **.00

-$$.00 58.00

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.00 8.00

0.00 80.00

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er :in<s 2' Trace er 2' Trace :&;er Tires

race er 2' Trace :&;er Anti-Squat :ine Anti-Squat '

r Axle &ll Axis





.00 80.00 100.00 1$0.00 10.00



4 Bar Linkage Calculator v3.0%evision Control &istory

Version Changes / Enhancements

'.( Corrections to the roll center calculation.

Additional "unit" descriptors added.

Added Coordinate System Diagram Sheet

).0 Added Graphical Display

Flipped Coordinate System Drawing to Match Graphical Display

Fixed Typos in comments

Moved Cells and emoved !lan #ines

Fixed $nits in Material Specs

3.0 Added !ump%Droop travel calculation sheet w% macro

earranged to mae it less cluttered and more user &riendly

Added Calculation o& Sprung Mass CG ' Anti(S)uat CG *CG ( rear axle+

Changed all calculations that used CG to Anti(S)uat CG

Fixed ,rrors -hen !ars are arallel

Added Automatic Display o& oll $ndersteer%/versteer

Saved as ,xcel 0.1%23 File

3.0c Added drivesha&t angle and plung calculations *not completed4+

Fixed Anti(S)uat CG 5eight Calculation

3.' Changed travel calculations to not re)uire solver add(in

Added travel chart to &ront page

Added travel specs to &ront page

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4Bar Linkage Calculator

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