Question
In: Mechanical Engineering
What’s the accuracy and precision of using a ball screw of 13 mm diameter in designing...
What’s the accuracy and precision of using a ball screw of 13
mm diameter in designing a table of motion which is 48 inches in x
and y direction?
Solutions
samet mamat answered 2 years agoRelated Solutions
What is the accuracy and precision of using a ball screw of 0.5 diameter in designing...
What is the accuracy and precision of using a ball screw of 0.5
diameter in designing a table of motion that is 48 inch in x and y
direction?
(c) A titanium hip replacement ball joint of 23.000 mm diameter was precision ground and required...
(c) A titanium hip replacement ball joint of 23.000 mm diameter
was precision ground and required to be finished to a tolerance of
+/- 0.002 mm The inspection procedure resulted in the parts being
measured whilst still hot at 80 C after grinding. If the
coefficient of linear expansion of titanium is 10 microns/metre deg
C, determine 1) The linear expansion relative to the reference
temperature of 20 deg C 2) The overall result of measuring parts
hot on the...
A single thread power screw is 36 mm in diameter with a pitch of 6 mm....
A single thread power screw is 36 mm in diameter with a pitch of
6 mm. A vertical load on the screw imposes a force of 9 kN. The
coefficients of friction are 0.09 for the collar and 0.16 for the
screw. The effective diameter of the collar is 52 mm. Find the
overall efficiency and torque required to raise and lower this
load.
The mean diameter of the square threaded screw having pitch of 10 mm is 50 mm....
The mean diameter of the square threaded screw having pitch of
10 mm is 50 mm. A load of 20 kN is lifted through a distance of 170
mm. Find the work done in lifting the load and the efficiency of
the screw, when
1. The load rotates with the screw, and
2. The load rests on the loose head which does not rotate with the
screw.
The external and internal diameter of the bearing surface of the
loose head...
A manufacturing company is measuring the diameter of a ball bearing in mm by 12 inspectors,...
A manufacturing company is measuring the diameter of a ball
bearing in mm by 12 inspectors, each using two different kinds of
calipers to test the difference between the sample means of the two
calipers used. Data is shown below. Use excel to resolve.
a) Use t-test to check if there is a significant difference
between the means of the population of measurements from which the
two samples were selected? Use α = 0.01, 0.05, 0.1 and comment on
the...
Manufacturing Ball bearings are manufactured with a mean diameter of 6 millimeter (mm).
Manufacturing Ball bearings are manufactured with a mean diameter of 6 millimeter (mm). Because of variability in the manufacturing process, the diameters of the ball bearings are approximately normally distributed with a standard deviation of 0.03 mm.
a) What proportion of ball bearings has a diameter more than 6.04 mm ?
b) Any ball bearings that have a diameter less than 5.95 mm or greater than 6.05 mm are discarded. What proportion of ball bearings will be discarded ?
c) ...
A plain carbon steel ball 2 mm in diameter is heated to 1200 K in an...
A plain carbon steel ball 2 mm in diameter is heated to 1200 K
in an oven and then cooled slowly in ambient air at 300 K. The
convection heat transfer coefficient between air and this steel
ball is 20 W / (m2 * K). You can find the density,
specific heat and thermal conductivity from the property tables
attached in text book with reasonable assumptions. Please derive an
equation estimating the changes of the temperature of this ball
with...
Using the following values on some evaluation measures: # Instances = 1000 Accuracy = 70% Precision...
Using the following values on some evaluation measures:
# Instances = 1000
Accuracy = 70%
Precision = 62.5%
Recall = 71.43%
A) Reconstruct the corresponding confusion matrix.
B) Report the TPR value of that confusion matrix.
C) Report the FPR value of that confusion matrix.
Using the following values on some evaluation measures: # Instances = 1000 Accuracy = 70% Precision...
Using the following values on some evaluation measures:
# Instances = 1000
Accuracy = 70%
Precision = 62.5%
Recall = 71.43%
A) Reconstruct the corresponding confusion matrix.
B) Report the TPR value of that confusion matrix.
C) Report the FPR value of that confusion matrix.
In an industrial process, 20 mm diameter spherical steel ball bearings are heat-treated to improve their...
In an industrial process, 20 mm diameter spherical steel ball
bearings are heat-treated to improve their durability. For
application (1), the entire ball bearing needs to be heated evenly
to 1000 K. For application (2), only the outer 1 mm of the ball is
to be heated to a temperature in excess of 1000 K. The properties
of the ball bearing are c = 0.5 kJ/kg*K; p = 7800
kg/m3; k = 50 W/m.K. At your facility, you have access...
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