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The hoist consists of a single rope and an arrangement of frictionless pulleys as shown. If...
3. (15 pts) Consider the arrangement of pulleys and blocks shown in the figure below. The...
3. (15 pts) Consider the arrangement of pulleys and blocks shown in the figure below. The pulleys are assumed massless and frictionless and the connecting strings are massless and unstretchable. Denote the respective masses as ma and mß. The uppermost pulley in the figure is free to rotate but its center of mass does not move. All pulleys have the same radius R.
(3 points) inverted king post 01 The truss shown is called a king-post truss. It is...
(3 points) inverted
king post 01
The truss shown is called a king-post truss. It is inverted,
such that the structure lies below the plane of the supports. Find
the reactions at the supports and the forces carried in each member
when a force of FF = 14 kN is applied and the dimensions
of the truss are given below.
a = 4.5 m
θ = 58 degrees
ϕ = 56 degrees
Designate members in compression with negative values, and...
The beam ABC has a mass of 78.0 kg and is supported by the rope BDC...
The beam ABC has a mass of 78.0 kg and is supported by the rope
BDC that runs through the frictionless pulley at D. The winch at CC
has a mass of 44.5 kg. The tension in the rope acts on the beam at
points B and C and counteracts the moments due to the beam's weight
(acting vertically at the midpoint of its length) and the weight of
the winch (acting vertically at point C) such that the resultant...
A folding tray mechanism is attached to a wall as shown. Find the internal forces and...
A folding tray mechanism is attached to a wall as shown. Find the internal forces and bending moment in the lower support arm at section s-s, located midway between points B and E, when a force of F 225 N is applied at an angle of 29 2013 Michael Swanbom BY NC SA Values for dimensions on the figure are given in the following table. Note the figure may not be to scale Variable Value a 21 cm b 28...
(16 points) Difficulty (4/5) A mechanical connection known as a clevis and pin is shown. The...
(16 points) Difficulty (4/5)
A mechanical connection known as a clevis and pin is shown. The
dimensions of the assembly are given as:
a = 30 mm
b = 33 mm
c = 10 mm
d = 18 mm
t = 22 mm
W = 45 mm
L = 113 mm
In order to avoid failure in the materials used to create the
parts:
-The normal stress in the pin must be limited to 680 MPa.
-The shearing stress in...
3. (15 pts) Consider the arrangement of pulleys and blocks shown in the figure below. The pulleys are assumed massless and frictionless and the connecting strings are massless and unstretchable. Denote the respective masses as ma and mß. The uppermost pulley in the figure is free to rotate but its center of mass does not move. All pulleys have the same radius R.
(3 points) inverted
king post 01
The truss shown is called a king-post truss. It is inverted,
such that the structure lies below the plane of the supports. Find
the reactions at the supports and the forces carried in each member
when a force of FF = 14 kN is applied and the dimensions
of the truss are given below.
a = 4.5 m
θ = 58 degrees
ϕ = 56 degrees
Designate members in compression with negative values, and...
The beam ABC has a mass of 78.0 kg and is supported by the rope
BDC that runs through the frictionless pulley at D. The winch at CC
has a mass of 44.5 kg. The tension in the rope acts on the beam at
points B and C and counteracts the moments due to the beam's weight
(acting vertically at the midpoint of its length) and the weight of
the winch (acting vertically at point C) such that the resultant...
A folding tray mechanism is attached to a wall as shown. Find the internal forces and bending moment in the lower support arm at section s-s, located midway between points B and E, when a force of F 225 N is applied at an angle of 29 2013 Michael Swanbom BY NC SA Values for dimensions on the figure are given in the following table. Note the figure may not be to scale Variable Value a 21 cm b 28...
(16 points) Difficulty (4/5)
A mechanical connection known as a clevis and pin is shown. The
dimensions of the assembly are given as:
a = 30 mm
b = 33 mm
c = 10 mm
d = 18 mm
t = 22 mm
W = 45 mm
L = 113 mm
In order to avoid failure in the materials used to create the
parts:
-The normal stress in the pin must be limited to 680 MPa.
-The shearing stress in...
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