Mass Point

Mass Point

 

the concept, used in mechanics, concerning an object of vanishingly small dimensions that has mass. The position of a mass point in space is defined as the position of a geometric point, which greatly simplifies the solution of problems of mechanics. In practice such a body may be considered a mass point in those cases when it moves progressively or when the distances traversed by the points of a body are very great in comparison with its dimensions. When any mechanical system (in particular, a solid) moves, its center of mass (center of gravity) moves in the same way as a mass point with a mass equal to the mass of the entire system would move under the action of all external forces applied to the system.

References in periodicals archive ?
I think we're almost at the critical mass point," Sargent added.
The mass point distribution of the conrods is based on two points.
Thus the centre of mass point and the centre of charge point are separated by the radius of rotation.
According to the specification, it is mainly to consider the external damping of the diesel engine mass point and propeller mass point as well as the internal damping of the diesel engine crankshaft and the transmission shaft in Table 2.
As shown in Figure 1, supposing that circle 0' denotes the Earth, M denotes its mass; m denotes the mass of the small ball (treated as a mass point P), A 0' is a plumb line, and coordinate y is parallel to AO'.
Mechanically, DFM estimates (2) and (3) simultaneously via maximum likelihood estimation (MLE), conditional on each mass point representing a value of the random variable [[omega].
Each of the rig assemblies together with corresponding additional frames (with the exception of supporting device (figure 1) was modelled as a rigid region concentrated at the mass point where total mass is located.
For the point mass m in the object it is possible to calculate the moment of momentum with the radius-vector product and vector product of velocity and mass point.
BMW also decided to make the roof out of Aluminium which lowers the mass point of the car and has a positive impact on the driving dynamic performance which all customers will recognize.
Identification is achieved by setting the first mass point equal to zero and the second mass point equal to one for each factor.
According to team member Craig Heinke, this means that interactions with binary stars, not a central mass point, drive the dynamical evolution of a globular's dense core.