合肥工业大学学报杂志社 关键词：齿轮挤压；流曲线；参数方程；曲面造型 [gap=719]Key words:gear extrusion; stream curve; parameterized equation; surface modeling
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Quadratic parameterized equation 二次参数方程组
In this paper, the surface is presented with a parameterized equation or a signed distance function.
文中的曲面或用参数方程表达或用符号距离函数表达。
First, we realize the mathematic model through getting the parameterized equation by analyzing the fluid mechanics and make use of Bezier curve to approximate stream curve.
首先，我们运用流体力学的原理，分析推导出流曲线曲面的参数方程，实现了挤压型腔的数学建模。
Using this method, the behavior equation of a capacitive micro pressure sensor is represented, then its reusable parameterized schematic-drive model is established coded by HDL (MAST).
针对电容式微型压力传感器，专门考虑膜片的空间连续行为以及结构、静电力的耦合作用，建立了包含接口电路在内的系统模型，据此进行了动态行为仿真。
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