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DETAILED TRANSPORT CALCULATIONS

Client dependant

Client Name

Client :

Project name

Project : Project description :

Project Description

Reference number :

466023-9-K15

Load description :

Diesel engine

Length : Width : Height : Weight : Location :

Client approval (stamp/sign):

Client remarks :

Authorized name: The Works Int dependant

Project/file number :

0

23-Aug-03

For Bid

Marco J. van Daal

Revision

Date

Reason for issue

Project Manager

StabCalc

Stability calculations for Hydraulic Platform Transporters

Remarks Page: 1/4

TRANSPORT CALCULATIONS INPUT:

Diesel engine ENG. SPMT Single 12 Liner

Trailer configuration

1500 mm 2430 mm

No.

22e035

0

(Ll) = (Lh) =

12472 mm 6432 mm

trailer heigth trailer width

(Th) = (Tw) =

trailer length trailer axle lines trailer CG (y) trailer weight 3 or 4 point susp.

(Tl) = (n) = (CG) = (Wt) = (p) =

axle base axle centre height

(Sa) = (Ah) =

1450 mm 363 mm

load transparancy factor additional weight

(Tf) = (Wa) =

1 0.0 mTon

max axle pressure trailer speed

(Ap) = (V) =

17.0 mTon 5.00 km/h

gravitation average wind pressure

(g) = (Wp) =

9.81 m/sec² 11.8 kg/m²

curve impact Mu steel/wood transverse road gradient longitudinal road gradient chain capacity

(Ci) = (Mu)= (Mgt) = (Mgl) = (cc) =

2.00 0.20 1.00 3.00 5.00

16800 12 1200 55.0 3

max. acceleration (a) = max. decceleration (d) = Axles suspended (Sn) = Safe hydr. stability angle (Shsa) = Safe structural stab. angle (Sssa) =

0.50 2.50 8-0-8-8 8.00 5.00

load length load height (incl. beams)

Rev.

mm Nos. mm mTon point

load width load weight height CG (y) (incl. beams) transverse CG longitudinal CG

m/sec² m/sec² Nos. deg. deg.

(Lw) = (Wl) = (CGh) = (CGt) = (CGl) =

5516 170.0 1500 10 10

mm mTon mm mm out mm out

% deg. deg. mTon each

Note: All assumptions are worst case

LASHING CALCULATION Acceleration Forces on Max Ground Slope:

F N R1

= (Wl + Wa) * sin ( Mgl )

= (((Wl + Wa) * a ) / g) + F - ( Mu * N )

= = =

C1

= R1 / cc

=

= (Wl + Wa) * cos ( Mgl )

( If R1 negative, no chains required )

8.90 mTon 169.77 mTon -16.4 mTon 0 chain(s) required in front direction

Decceleration Forces on Max Ground Slope:

F N R2

= (Wl + Wa) * sin ( Mgl )

= (((Wl + Wa) * d ) / g) + F - ( Mu * N )

= = =

C2

= R2 / cc

=

= (Wl + Wa) * cos ( Mgl )

( If R2 negative, no chains required )

8.90 mTon 169.77 mTon 18.3 mTon 4 chain(s) required in rear direction

Chains required for lashing:

4 chain(s) required

= C1 + C2

Y

Single system, load and trailer (Y/N)? :

12 chain(s) required

= Wt / cc

GROUND BEARING PRESSURE CALCULATION Weight Trailer + Load + Add. Weight = Wtot Load / line Load / axle Load / tyre Load / width of tire Ground Pressure StabCalc

225.0 225.0 225.0 4.7

mTon over mTon over mTon over mTon over

= 12 24 48 12

Lines Axles Tyres inch

= = = = =

225.0 mTon 18.8 9.4 4.7 0.39 5.5

Stability calculations for Hydraulic Platform Transporters

mTon mTon mTon mTon/inch = mTon/m²

860.4 lbs/inch

Page: 2/4

STABILITY ON HYDRAULICS CALCULATION CGtoth

= ((Wt*CG) + ((Wl+Wa)*(CGh+Th)))/Wtot

=

2560 mm

CGtott CGtotl

= ((Wl + Wa) * CGt) / Wtot = ((Wl + Wa) * CGl) / Wtot

= =

8 mm 8 mm

Ltri

= SQRT((0.5*Sa)² + (0.5*Tl)²)

=

8431 mm

(C.O.G. of Trailer + Load + Beams) out of center out of center Length of stability triangle

Longitudinal stability angle

Aminl Lng. Cam

= (Tl/2 - 0.5*GroupD - CGtotl) = Aminl / (CGtoth - Ah)

= =

2792 mm 1.2707

Lng. Grad

= arctan (Lng. Cam.)

=

51.8 deg. OK !

CGtotl towards 2 groups (C&D) Longitudinal Stability Camber Max. longitudinal Gradient on Stability

Transverse stabitily angle

Amint

= ((0.5*Tl-Aminl)*sin(0.5*Sa/Ltri))-CGt

=

476 mm

Tr. Cam. Tr. Grad

= Amint / (CGtoth-Ah)

= =

0.2168 12.2 deg. OK !

= arctan (Tr. Cam.)

CGtott towards groups (A&D) Transeverse Stability Camber Max. Transverse Gradient on Stability

STABILITY ON STRUCTURE CALCULATION CGtoth CGtott CGtotl

= ((Wt*CG) + ((Wl+Wa)*(CGh+Th)))/Wtot

Fwt Mwt Fwl

= Wp * (Transverse Load Surface * Tf)

Mwl Mt

= Fwl * ((0.5 * Lh) + Th)

Ml Mci Ma/d Mroadl

= CGl * (Wl + Wa)

= tan(Mgl)*(CGtoth-Ah)*Wtot

= = = =

Mroadt

= tan(Mgt)*(CGtoth-Ah)*Wtot

=

= ((Wl + Wa) * CGt) / Wtot = ((Wl + Wa) * CGl) / Wtot

= Fwt * ((0.5 * Lh) + Th) = Wp * (Longitudinal Load Surface * Tf)

= CGt * (Wl + Wa)

= Ci * Wtot * (CGtoth - Ah) = (( Wtot * d ) / g ) * (CGtoth - Ah)

= = =

2560 mm 8 mm 8 mm

= = =

1.14 mTon 5.36 mTon * m 0.50 mTon

Transverse Wind Force

= =

2.37 mTon * m 1.70 mTon * m

Longitudinal Wind Moment

1.70 9.89 126.00 25.91

C.O.G. of Trailer + Load + Beams Transverse out of center Longitudinal out of center

mTon * m mTon * m mTon * m mTon * m

8.63 mTon * m

Transverse Wind Moment Longitudinal Wind Force

Moment due to transverse loadoffset Moment due to longitudinal loadoffset Curve Impact Moment on Trailer Acceleration / Deccelaration Impact Moment due to road gradient Moment due to road gradient

Longitudinal stability on strength

Group A

9.38 2.32

Group B

11.70 OK ! Lng. Cam Lng. Grad

0.00 0.00

Group C

0.00 OK !

= ((Ap*0.5*Tl/Fmax*2)-(0.5*Tl/2))/(CGtoth-Ah) = arctan (Lng. Cam.)

= =

9.38 1.16

Group D

10.54 OK ! 0.8667 40.9 deg. OK !

9.38 mTon / axle 1.16 mTon / axle (due to moments) 10.54 mTon / axle (Fmax.) OK ! Longitudinal Stability Camber Max. Longitudinal Gradient on strength

Transverse stability on strength

Group A

Tr. Cam. Tr. Grad

9.38 0.00 9.38 OK !

Group B

0.00 0.00 0.00 OK !

= ((Ap*Sa/Fmax*2)-(0.5*Sa))/(CGtoth-Ah) = arctan (Tr. Cam.)

Group C

= =

9.38 Group D 2.20 11.58 OK ! 0.1544 8.8 deg.

9.38 mTon / axle 2.20 mTon / axle (due to moments) 11.58 mTon / axle (Fmax.) OK ! Transeverse Stability Camber Max. Transverse Gradient on strength

OK ! StabCalc

Stability calculations for Hydraulic Platform Transporters

Page: 3/4

OVERALL CONCLUSION: •

STABILITY LIMIT:

8.8

deg.

•

LASHING CHAINS REQUIRED:

12

Nos.

•

GROUND BEARING PRESSURE :

5.5

mTon/m²

STABILITY ON STRUCTURE

GENERAL SITUATION: Transverse Direction

Stability arm 3-point suspension

CGtott Group A

Group B

Transverse: A or B Longitudinal: E or F

4-point suspension Transverse: C or D

Axle Distance

Longitudinal: G or H

G E

CL

A B D

CGtotl

Tl

C Longitudinal Direction

C.O.G. F H

CL

Group D

Group C

Sa

Tw

Note 1: General situation, drawing does not adapt to input- and calculated values. Note 2: Group A and B should have less axles than Group C and D if need be. Note 3: In case of 3-point suspension Group B = 0.

NOTES: • • • • StabCalc

The transverse transporter gradient will be kept within +4 and -4 degrees with the road by the transporter operator. Calculations are based on transporter driving in normal mode, not in transverse mode. All assumptions are highly estimated, and therefor not allways according to the drawings. Road gradient is included in lashing and structural calculation but not in hydraulics calculation. Stability calculations for Hydraulic Platform Transporters

Page: 4/4