什么是表示法? 单一点质量?

SANYAN68

Stiffness Behavior

In addition to making changes to the material properties of a part, you may designate a part's Stiffness Behavior as being flexible, rigid, or as a gasket.

*Setting a part’s behavior as rigid essentially reduces the representation of the part to a single point mass thus significantly reducing the solution time.

*A rigid part will need only data about the density of the material to calculate mass characteristics. Note that if density is temperature dependent, density will be evaluated at the reference temperature. For contact conditions, specify Young’s modulus.

*Flexible and rigid behaviors are applicable only to static structural, transient structural, rigid dynamics, and modal analyses. Gasket behavior is applicable only to static structural analyses.

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设定零件的性能为坚硬主要使零件的表示法减少至单一点质量因而大幅减少求解时间。

什么是 表示法 (representation ) ?

什么是 单一点质量 (single point mass) ?