bruce mayer, pe licensed electrical & mechanical engineer bmayer@chabotcollege
DESCRIPTION
Engineering 36. Lab-05 Chp4 Angle Problems. Bruce Mayer, PE Licensed Electrical & Mechanical Engineer [email protected]. Problem. Cable AB & AC attached to Tree Trunk and fastened to Stakes in the Ground Given Cable Tension T AC = 3.6 kN Find - PowerPoint PPT PresentationTRANSCRIPT
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt1
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
Bruce Mayer, PELicensed Electrical & Mechanical Engineer
Engineering 36
Lab-05 Lab-05 Chp4Chp4
AngleAngleProblemProblem
ss
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt2
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ProblemProblem
Cable AB & AC attachedto Tree Trunkand fastenedto Stakes in the Ground
Given Cable Tension TAC = 3.6 kN
Find• Components of Force exerted
by cable AC on the Tree
• The Space Angles θx, θy, θz for Cable AC
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt3
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt4
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt5
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt6
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt7
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ProblemProblem
Given theGeometryof the SteelFrameWork as Shown
Given• EF & EG are Cables• Pt-E is at MidPt of BC• Tension in Cable EF is 330N
Find• Angle Between EF and BC• Projection on BC of the force
exerted by Cable EF at Pt-E
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt8
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ûEF ûFB
C ûEF
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt9
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt10
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt11
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ProblemProblem
Given• Geometry
as Shown• BungiCord
PC with Tension of 30N
• Distance OP = 120 mm
Find• Angle Between PC and OA• Projection on OA of the force
exerted by the BungiCord PC at Pt-P
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt12
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt13
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
=
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt14
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ûOA
|û|
ûOA
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt15
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ProblemProblem
Given• Geometry as Shown
– Angle OAB is 90°
• Tension in Cable BC is 5.3 kN
1050
1800
2400
1200
1050
1800
2400
1200
TBC = 5.3 kN
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt16
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ProblemProblem
1050
1800
2400
1200
1050
1800
2400
1200
TBC = 5.3 kN
Find• The Angle, θ, Between the
Cable and Pipe BA
• The Components of FBC (cable force acting at Pt-B) that are || and to Pipe BA
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt17
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt18
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt19
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics
ENGR-36_Lab-05_Fa07_Lec-Notes.ppt20
Bruce Mayer, PE Engineering-36: Vector Mechanics - Statics