仁正 宋

Design Voice Coil Motor(VCM) for smartphone camera modules.

Optimized OHT structure and verified design with Ansys Mechanical. OHT (Overhead Hoist Transfer, an unmanned vehicle for transporting wafer cassettes in the semiconductor.) • Conducted acceleration measurement experiments to define the simulation conditions and verified the design of the chassis structure. • Simplified the chassis with 9% less deformation and 24% less weight. Saved assembly time by removing lots of bolts. • Designed the new top plate of rails and planned verification programs. Reduced the deformation by 4% and lowered the costs by 76%. Optimized Permanent Magnet Synchronous Motor (PMSM) with Ansys Maxwell. • Rotor geometry parametric design of Internal Permanent Magnet (IPM) motor. Decreased the current by 12% and the magnet by 9% while maintaining the same torque target. • Simulated Lead Angle, Cogging Torque, and Demagnetization Curve. • Measured efficiency, temperature rise, and torque. • Drew 3D and 2D parts, assembled samples, and defined the test SOP. Led the Highly Accelerated Life Test (HALT), established the machine SOP, and introduced new suppliers to improve quality. • Servo Motor Brake: Increased the lifespan by more than 10 times and added the function of lifespan estimation. Analyzed the elemental composition and failure mode. • OHT Wheel: Defined test standards and cooperated with suppliers to increase life expectancy by more than 4 times. Summarized the damage characteristics and observation methods. • Developed the wheel inspection system using OpenCV in Python and machine learning. 使用Ansys Mechanical進行OHT結構優化、設計檢核。 (Overhead Hoist Transfer, 空中走行式無人搬運車，運送半導體晶圓盒) • 主導加速規實驗，由實驗定義模擬條件，驗證電箱結構設計。 • 簡化車底板設計、減少組裝時間，新設計變形量減少9%，重量減少24%。 • 新設計軌道上板、規劃實驗驗證，新設計變形量減少4%，成本減少76%。 使用Ansys Maxwell進行永磁同步馬達優化，IPM轉子幾何參數化設計。 • 在相同扭力目標下，電流需求降低12%、磁石減少9%。 • 超前角、頓轉扭矩、退磁分析。 • 效率量測實驗、溫升測試、扭力測試。 • 圖面繪製、樣品組裝，並定義檢測SOP。 主導加嚴實驗規劃、建立機台操作SOP，導入新供應商以提升品質。 • 伺服馬達煞車器：讓壽命提升10倍以上，並增加使用壽命預估功能。 • OHT膠輪：定義測試標準，與供應商共同開發，讓壽命提升4倍以上。 • 以Python的OpenCV影像處理搭配機器學習，開發膠輪檢查系統。

• Designed suspension forks and established standards with suppliers. • Measured the curves of air springs using Universal Testing Machines. • Modified the designs of damper cartridges based on feedback from test riders. • Conducted durability tests on dampers and performed failure analysis. • Assembled samples and confirmed the production capability.

Master's thesis: The Effect of a Motor-controlled Torque Vectoring Differential on the Vehicle Handling Dynamics -Analyzed and simulated by MATLAB. -Published in the Chinese Society of Mechanism and Machine Theory (CSMMT).

Practice of Mechanical Engineering (Grade: A+) -Designed and built an air-propelled vehicle which could follow a specified path. -Led the team and won first place in the final test competition.