21,

THE# MICHIGAN DAILY

21, THEI i -- -.- C-----A-- -AI---Y

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DEBATE:
Michigan vs. Wayne State

RELIABILITY DESIGNING:
Lipson Explains Method
To Reduce Test Costs

'"Are Intercollegiate Athletics
Reimng Overemphasized?"

_
.

4:00

3R-S, Union

FRESHMAN NOTE:
SOPH SHOW
CENTRAL COMMITTEE
PETITIONING

Designing reliability into prod-
ucts and'verifying the reliability
before production begins can save
money for industrial organizations
by reducing the amount of requir-
ed quality testing.
Prof. Charles Lipson of the
mechanical engineering depart-
ment told a seminar this when
discussing "Engineering for Reli-
ability," Wednesday.
"The cost of testing is the ma-
jor portion of the budget of an
engineering department in any or-
ganization," he told 200 chief de-
signers and, other engineering
executives. The College of Engi-
neering Industry Program, the De-
partment of Mechanical Engi-
neering, and the Institute of Sci-
ence and Technology sponsored
the one-day meeting.

f

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March 15-26 . .. At the League

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To reduce testing and build re-
liability into a product of efficient
design, reliability should be de-
signed into the product in numer-
ical form, using statistical methods
-"an absolutely essential tool in
reliability," Prof. Lipson' said.
'Before-The-Fact'
Such a "before-the-fact" meth-
od requires consideration of re-
liability, "not only before the
product is produced, but before it
is even designed."
This is in contrast to the "tried
and true"-and more expensive--
method of testing parts after de-
sign and initial production, then
redesigning and retooling to cor-
rect failures discovered after a
product is built.
Used in the "before-the-fact"
approach is "interference theory,"
in which expected stress and
strength distributions are statist-
ically compared, and the probable
number of failures-or lack there-
of-predicted.
Diagnostic Group
Prof. Lipson also recommended
that every industrial organization
have a diagnostic group of special-
ists to examine parts that have
failed in the field, to avoid a repe-
tition of the malfunction.
He noted that an increasing
number of manufacturing organi-
zations have formed reliability en-
gineering departments in the last
three or four years.
Among the leaders have been
producers of precision parts for
electronics and space devices, in
which reliability is essential. Now
this is permeating into such con-
sumer goods industries as auto-
mobile, appliance, and farm equip-
ment manufacturing, he said.
Set Program
For Politics
In order to encourage college
students to participate in partisan
politics, the Michigan Center for
Education in Politics (MCEP) will
offer eight summer political in-
ternships this year to qualified
students.
Juniors, seniors, and first-year
graduate students currently at-
tending a Michigan college or uni-
versity are eligible. t
The summer, internships, sev-
eral of which will be served in
Washington, D.C., are with a num-
ber of political organizations and
individuals. Each internship cov-
ers an eight-week period and pays
a salary of from $60 to $80 week-
ly.

Professor
Tellsof Tri
To GlacieOr
By DONNA ROBINSON
Charles Swithinbank of the geol-
ogy department has recently re-
turned from his third consecutive
season of studying glacial move-
ment in Antarctica.
The expedition was part of the
University's long-range study of
the Ross Ice Shelf, a floating mass
of ice the size of Spain, Swithin-
bank said.
At Mt. Betty, about 325 miles
from the South Pole, the party
found a note which had been
placed in a rock cairn in 1929 by
members of Admiral Byrd's first
expedition in the area. The note
contained a listing of the members
of the expedition and their activi-
ties up to that time.
Notes Customary
Such notes are customary with
all Arctic explorers, Swithinbank
said. In case the expedition should
be lost, future explorers could
guess from the notes what might
have happened to it, and perhaps
be forewarned of some danger.
Swithinbank's team was the
first to enter the Mt. Betty area
since the 1929 expedition, which
was led by Prof. Laurence M.
Gould, then a member of the Uni-
versity faculty.
The longest of the present team's
trips away from the base lasted
for seven, weeks. For this stay 500
pounds of lightweight, dehydrated
food was necessary for five men,
Swithinbank said. They of course
carried no water, since that is
about, the only thing of which
there is an abundant supply in
Antarctica.
.Lost Contact
During one of the forays from
base, the team lost contact with
the base, simply because their
transmitter couldn't reach far
enough.
While there was some appre-
hension back at the base that the
party might have fallen into one
of the treacherous, snow-covered
creiasses which are found every-'
where in Antarctica, Swithinbank
said there was little fear among
the members of the team that
they would not be able to return.
"I make it a point never to go
out without enough' food to get
back on my ten toes if necessary."'
Findings of the team indicated
that some of the glaciers may
be moving faster than normal -
about five feet a day, Swithin-
bank said. This was because the
glaciers had been collecting snow
from a larger area than previous-
ly believed.,

t

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