Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kinematical Analysis of an Articulated Mechanism   The purpose of this work is twofold: to present mathematical expressions for
the kinematics of an articulated mechanism and to perform numerical experiments
with the implemented code. The system of rigid parts is made of two slender
bars and a disk. In the original configuration, a constant counterclockwise
rotation rate is imposed on the disk. In the modified version, this angular
velocity varies linearly with the rotation angle to produce an average rate
that is nearly the same as the constant case. Angles, velocities and
accelerations are analyzed for a 90-degree turn of the disk. The numerical
solutions show the inversion of the linking bar sense of rotation along with
the start of deceleration for both bars. The paper and pencil solution of the
original problem that may lead to a wrong conclusion is explained. Equations
are derived from first principles and the code is placed under version control.
Those in charge of vector dynamics courses may find it useful as a
project-based learning activity.

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The categories of this paper are: q-alg
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
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The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat