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How do you determine the position of neutral axis of a dc generator?
Wiki User
∙ 11y ago
its very close to 1/2 way between the poles
if there are shading poles it tends to be in the same spot with varying loads
if you can rotate the brush holders try to get the least arcing
Wiki User
∙ 11y ago
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How to calculate Q first moment of inertia above and below the neutral axis?
-find the area(A) of the shape above the neutral axis (or above a particular point if given) - locate the centroid (y')of the shape relative to the neutral axis(or above point) using y' = ∑AiYi / ∑Ai - first moment of area = A*y' (or y' + distance of given point from neutral axis)
In a dc generator brushes are placed in which side to avoid armature reaction?
along the M.N.A axis along the M.N.A axis
If the neutral axis of a reinforced section is above the critical section what is the section called?
Under Reinforced Section
What does MNA in AC motors stand for?
The meaning of MNA is Magnetic Neutral Axis. It can be defined as the axis along which no emf is produced, as the armature conductors moves parallel to the field flux lines. The scope of how it works is to great an explanation for this site.
How do you find ultimate bending moment of steel beams?
Assuming linear elastic bending with small deformations and planes perpendicular to the neutral axis remain plane after bending, then for a rectangular beam: Moment = (Yield Stress)*(Second Moment of Area)/(Distance of surface to Neutral Axis) For Ultimate Bending Moment, assume stress is uniform throughout the beam, and acting through half the distance from surface to neutral axis, then: Moment = Stress * (Area/2)*(h/4 + h/4) For a better visualization check out Popov's textbook, Engineering Mechanics of Solids, Chapter 6, Section 6.10
Why is brushes placed at MNA in a dc generator?
to avoid sparking ,since their is no e.m.f induced in magnetic neutral axis.
What is neutral axis of a beam?
The Neutral Axis of a concrete beam is that axis where it is neither in tension nor compression. The transition of tensile to compressive forces set up due to bending occurs on the neutral axis. Its position in a beam depends on material properties of the concrete and reinforcing steel.
What is the name of horizontal and the vertical lines drawn to determine the position of any point in the Cartesian planeM?
Very simply (and unimaginatively), the horizontal axis or x axis and the vertical or y axis.
What is the neutral axis of a beam?
The neutral axis of a reinforced concrete beam is the area where the beam is neither in a state of tension or a state of compression. This is determined by having the length and breadth of the beam available.
How do you calculate neutral axis of a wooden beam?
In order to compute the neutral axis of a beam, we need its dimension and shape.
Which neutral country was surrounded by axis conquest and axis countries?
Switzerland
Was Mongolia allies or axis?
No. It was actually a neutral country.It actually remained neutral.
Saturn's position on its axis?
The axis tilts at an angle of about 27 degrees from the perpendicular position.
How can you determine the polarization axis for a single sheet of Polaroid?
How can you determine the polarization axis for a single sheet of Polaroid?
How to calculate Q first moment of inertia above and below the neutral axis?
-find the area(A) of the shape above the neutral axis (or above a particular point if given) - locate the centroid (y')of the shape relative to the neutral axis(or above point) using y' = ∑AiYi / ∑Ai - first moment of area = A*y' (or y' + distance of given point from neutral axis)
What is position - time graph?
A position-time graph, is one in which position is plotted on the y-axis and the time is on the x-axis. A position-time graph is similar to a distance-time graph, but direction of motion in the y-axis.
How to determine correct labelling of x and y axis?
Y axis is the vertical axisX axis is the horizontal axis
