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Backhoe Excavator Arm

Rating:
34

Description


1) The repeated use of cosine rule (a2=b2+c2-2bccosA) for geometry calculations.

2) Calculating moments about a point and perpendicular distances to calculate forces.

3) Consider stability limits of the machine.

Calculation Reference
Machine Design
Mechanics of Materials

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Uploaded
28 Apr 2016
Submitted By:
John Doyle (JohnDoyle[Admin])
Last Modified
16 Jan 2020
File Size:
496.30 Kb
Downloads:
324
File Version:
1.1
Rating:
34

 
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Comments: 8
avatar JohnDoyle[Admin]
JohnDoyle[Admin] 20 days ago
'r' is the position of the centre of gravity of all parts of the vehicle minus the excavator arm itself (chassis, cab, outriggers, wheel and front bucket). None of these parts will move when the boom is fully retracted so the position of 'r' remains unchanged as the geometry of the excavator arm changes. I hope this helps.
avatar doosan
doosan 29 days ago
Can you tell me if machine CG 'r' has to be checked @ Boom fully retracted condition?
avatar saseend
saseend 1 year ago
Can you please discribe about equation number 91
avatar JohnDoyle[Admin]
JohnDoyle[Admin] 2 years ago
Please read FAQ
avatar guygardnerharris
guygardnerharris 4 years ago
Apologies for the multiple comments: coding bug on the webpage!
avatar guygardnerharris
guygardnerharris 4 years ago
Dear John ... I downloaded and opened the Excel file, but I immediately got #NAME issues, because the formulae reference other sources (see screenshot).
Could you please adjust this within the spreadsheet itself, or perhaps forward the referenced files?
Many thanks in advance!
avatar white0910
white0910 4 years ago
Excavator+Arm is not updating. Kindly send the procedure for updating the sheet...Thanks in advance
avatar marshallj
marshallj 14 years ago
Thanks.

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