Sample Midterm Exam 2 for ME10 Spring 2014
Instructions (Read Carefully):
On the top margin of each page write:
o Your name
o Your discussion session (M/W)
o Midterm 1
The exam is closed-book and closed-note.
You may use a non-graphic, scientific calculat
Structures: Plane Trusses
Method of Joints
Statics
Lecture No. 9
Trusses
2
1
Introduction
A structure is any object that has the capacity to
support and exert loads.
Structures are usually composed of interconnected
parts, or members.
A truss is a type
Distributed Forces (part 2):
- Center of Mass of a Composite Body
- Distributed Loads
Statics
Lecture No. 12
Review
Center of Mass
x=
x dm
m
dm
y=
m
x=
y dm
m
dm
z=
m
x dV
dV
y=
z dm
m
dm
m
y dV
dV
z=
z dV
dV
Centroid ( = constant)
x=
x dV
ME10 Statics
Course Introduction
Dr. Tom Stahovich
Department of Mechanical Engineering
University of California, Riverside
ME 10 Statics
Spring 2010
Instructor
Professor Stahovich
Teaching Assistants
To be announced soon
2
1
Outline
What is statics?
Cour
Equilibrium
in Two-Dimensions
Statics
Lecture No. 5
Objectives
Learn how to
apply the equilibrium conditions to determine
unknown forces and couples acting on objects
subjected to two-dimensional force systems.
identify statically indeterminate objects
Wrap Up
Statics
Lecture No. 16
Remaining Tasks
Project
iLearn: Friday @ 11:30pm
Report: Friday @ 5:00pm, Bourns B246
Concept Inventory
Check iLearn, Drop lowest HWK
Thursday, Ethics Case study
2
1
3
F
f /2
Tensioning
Rod Spring
Z
F
f /2
FT
Y
X
4
2
M
Distributed Forces: Centroids
and Centers of Mass
Statics
Lecture No. 11
Distributed Forces
Every external force applied mechanically to a
body is distributed over a finite contact area.
Volume Distribution body forces, intensity
described by the specif
Force Systems:
Moments and Couples
Statics
Lecture No. 3
Review - Forces
You should be able to:
Resolve a given force vector into it components along
given directions.
Express a force vector in terms of unit vectors.
Express a force as a vector given i
TV Antenna Tower Collapse
Engineering Ethics Case Study
Statics
Lecture No. 17
iEval
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Current response rate: 44%
Your feedback helps me improve the
course
Constructive comments are greatly
appreciated
2
1
Statics
Free-Body Diagrams
Statics
Lecture No. 4
Objectives
Define the terms mechanical system
and free-body diagram.
Learn how to model the application of
contact and body forces on mechanical
systems.
Learn how to construct free-body
diagrams.
2
1
Definition
Frames and Machines
Statics
Lecture No. 8
Frames and Machines
A frame or machine is a structure with at
least one multiforce member (3 or more
forces) .
Distinct from trusses = entirely two-force members
Frames are designed to remain stationary
and sup
Structures: Plane Trusses
Method of Sections
Statics
Lecture No. 10
Objective of Truss Analysis
Review
Determine the force resisted by each member so that
the member can be designed accordingly
Design of Truss Members
Determination of cross-section are
Force Systems: Forces
Statics
Lecture No. 2
Objectives
Learn how to:
Resolve a given force vector into it components along
given directions.
Express a force vector in terms of unit vectors.
Express a force as a vector given its magnitude and
informatio