本文主要在分析馬達內藏式高速主軸銑削加工之系統動態特性，藉由變頻器電壓、切削負載等資訊來探討主軸之輸出扭力、馬達之運動狀態及電流特性的影響。文中可分成模式建立、參數識別及實驗驗證與預測三部份。
首先將系統區分為兩個子結構，一為感應馬達之電機與轉子、刀具之機械子結構，另一為銑削製程之機械子結構。藉由感應馬達等效電路與端銑刀的銑削力模式，建立馬達內藏式主軸之機電整合模式架構。進而對系統參數進行識別，以變頻器之電壓、電流及馬達轉子速度之信號搭配最小平方法來估測系統最佳參數。最後並以數值模擬與實驗來驗證模式的正確性。

This thesis investigates the dynamic electrical-mechanical characteristics of the integrated high speed spindle with a built-in motor and the milling process. The system model consists of two subsystems; the first is the electro-mechanical system modeling the electrical circuit for the three-phase induction motor and the mechanical system for the motor rotor, spindle, the cutting tool and tool holder, as well as the system damping effect. The second subsystem is the milling process model composed of various cutting parameters including the tool geometry, depths of cut and cutting configuration. Various experiments are designed and carried out to identify all the system electrical and mechanical parameters. The identified system is verified through both numerical simulation and cutting experiments. It is shown that, based on the measured line voltages, currents, and spindle speeds, the dynamic cutting torque can be estimated without the force measurements by the dynamometer. The result of this research has provided a new approach to the online monitoring of the dynamic milling process.

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