MAE 1351 EXAM 2 LATEST UPDATE Q& A An assembly cannot be nested inside an existing assembly; only parts can - Correct
Answer: ; False
Assembly constraints - Correct Answer: ; a constraint between two 3-D instances so that the instances maintain dimensional or geometric relationships with respect to each other within the assembly
Associativity - Correct Answer: ; you can change the geometry of a part of a component and all instances of it will also change by the same amount
Base instance - Correct Answer: ; is a component that remains stationary while the other instances move around it
Boundary Conditions - Correct Answer: ; are specified at nodal points and along the elements edge
Center Mass or Centroid - Correct Answer: ; is the origin of coordinate axes for which the first moment is zero.it is considered the center of a volume...
Center of mass - Correct Answer: ; help increase an objects stability
Chapter 7 Notes - Correct Answer: ; Chapter 7 Notes
Chapter 8 Notes - Correct Answer: ; Chapter 8 Notes
Clearances - Correct Answer: ; the minimum distance between two parts
Coincidence - Correct Answer: ; two entities that take up the same space
Coincidence constraints - Correct Answer: ; can occur between two lines, two points, or between a point and a line
Components - Correct Answer: ; objects that make up a system
Concentric Constraints - Correct Answer: ; you can constrain the centerline of one instance to coincide with the centerline of a different instance forcing the two instances to be concentric
constraint - Correct Answer: ; A boundary condition applied to a finite element model to prevent it from moving through space
Density - Correct Answer: ; is the weight per unit volume for the material that the part is made from
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displacement - Correct Answer: ; A change in the location of points on an object after is has been subjected to external loads.
DOF - Correct Answer: ; degree of freedom; distance along X,Y,Z from the instance origin to the base component origin
ECHO 360 and Module Quizzes - Correct Answer: ; ECHO 360 and Module Quizzes
Electromagnetic fields - Correct Answer: ; when electricity flows through a wire, an electromagnetic field is created is important to understand because it can affect performance of an object
Every part brought/ made in SolidWorks has how many DOF's - Correct Answer: ; 6
Finite Element Analysis (FEA) - Correct Answer: ; is an advanced design analysis technique that divides objects into smaller elements in order to analyze them.is able to solve all types of stresses and deformations an object experiences
Finite Element Analysis Process - Correct Answer: ; 1. Creating the model geometry
- applying constraints
- applying loads
- meshing
- computing the results
- investigating the results
- modifying the design
Fluid flow and Pressure fields - Correct Answer: ; is used to compute the airflow around airplane wings and can also determine air pressure fields can also predict and alter the way fluid flows
For every mate I apply, I reduce the DOF of the part by these many - Correct Answer: ; Depends on the mate
I bring a cube into an assembly and mate coincident one of its vertices to a fixed
vertex. It now has how many DOF's - Correct Answer: ; 3
I bring a cube into an assembly and mate-coincident one of its edges to a fixed edge. It
now has how many DOF's - Correct Answer: ; 2
I bring a cylinder into an assembly and mate-parallel one of its flat faces to the top of
the plane. This causes it to lose these many DOFs - Correct Answer: ; 3
I bring a cylinder into an assembly and mate-tangent its curved to a curved surface of a
fixed identical cylinder. It now has how many DOF's - Correct Answer: ; 3
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