דף הצגת פרויקט – מס':146
תאריך:10.10.01
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אנגלית: Probabilistic -based
design of a linear MEMS resonator
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Technical Support manager, Bercom Ltd. |
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תואר:
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שם
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טל' נייד: |
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03-9233522(306) |
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E mail: shmulik@bercom.co.il
תאור
הפרוייקט:
Computer
simulations are conducted under predefined conditions and assumptions: material
properties, external loads, and boundary conditions are assumed to have fixed
values. However these assumptions have an associated degree of uncertainty.
This project is concerned with the effects of these assumptions (for example:
manufacturing tolerances), on the behavior of the device described in project
1. An engineer designing and analyzing such a product will have to address the
following questions:
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How much the
results of the analysis affected by the uncertainties in the model (scatter of
results)?
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What is the probability that certain
design criteria based on analysis results are no longer met (failure
probability)?
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Which input parameters are most
important for the product reliability and quality (sensitivities)?
For example, the device we are going to analyze may serve as an accelerometer that is used to trigger an automobile airbag. Are we sure it won’t go off accidentally when we driving a bumpy road?. The output parameters we want to check are capacitance and electrostatic force. Consequently a full finite element model of the comb “tooth” will be constructed and analyzed.
The generated data can be used to quantify the
reliability of the device and to achieve more robust design and improved
quality. Results provide guidance for necessary design changes in the most
efficient way.
מתודיקה:
לימוד הבעיה הפיזיקלית, בניית מודל בתוכנת אלמנט סופי מסחרית, ניתוח תוצאות.