Developments and Validations of Smart Rotifer Aquaculture System
Rotifers are common live feeds offered to the larvae of marine fish in aquaculture, and demands of rotifers have significantly increased in recent years. Nowadays the domestic rotifer aquaculture system faces several challenges such as large space requirements, labor-intensive processes, unstable yields, and the risk of bacteria pathogen contamination …
Numerical Sealing Performance Assessments of PTFE Rotary Lip Seals Based on the Elasto-hydrodynamic Analysis with the Consideration of Wear and the Corresponding Experimental Validations
Polytetrafluoroethylene (PTFE) rotary lip seals are widely applied to the industry due to their high tolerance to harsh environment. An aim of the current study is to examine the sealing performance of PTFE rotary lip seals after operations …
基於影像辨識與自動化監控之輪蟲智慧養殖系統
輪蟲(rotifer)係水產養殖海水魚種幼苗之重要開口餌料生物,目前國內輪蟲養殖體系存在如占地面積大、耗工時、成本高、產量不穩定、及感染病原風險高等問題。本研究旨於建立一輪蟲智慧養殖系統,首先透過實驗檢視投餵量與輪蟲密度相關性,作為控制輪蟲密度之參考依據。進一步應用輪蟲及纖毛蟲影像辨識模型,進行自動計數…
Experimental and Numerical Investigations of the Wear Behavior and Sealing Performance of PTFE Rotary Lip Seals Based on the Elasto hydrodynamic Analysis with Considerations of the Asperity Contact
Polytetrafluoroethylene (PTFE) rotary lip seals are broadly adopted components installed in industrial devices for long service life Although such components feature excellent wear resistance and low friction torque…
應用臨界平面法於紫外光照下筆記型電腦承受開闔條件之高分子零件疲勞壽命估算與驗證
工程塑膠/合膠係電子產品廣泛採用之高分子材料，倘若長時間暴露於陽光下易導致材料發生老化，進而影響產品之使用壽命及損壞率。本研究為評估筆記型電腦內高分子材料所製成之機殼上蓋，經光照老化後使用壽命是否大幅下降，因此針對所採用之PC/ABS材料…
Applications of Neural Networks to Metallic Flexor Geometry Optimization of Flat Wipers
The time-efficient procedures are proposed in the current study since demands of the flat wiper grow rapidly. A mathematical approach based on the discrete Winkler model is established here to simulate a flexor compressed against surface at various wiping angles…
Sealing Performance Assessments of PTFE Rotary Lip Seals Based on the Elasto-hydrodynamic Analysis with the Modified Archard Wear Model
Rotary lip seals made of Polytetrafluoroethylene (PTFE) are broadly used for the sealing of industrial components under harsh environmental conditions that elastomeric rotary lip seals cannot withstand…
Investigations of the Cushioning Performance for Packages Filled with Paperboard Structures under Drop Tests
Based on the concept of green packaging, biodegradable paper is considered as a potential alternative to non-recyclable foam materials such as expandable polyethylene (EPE) commonly utilized as cushions for product protections nowadays…
Efficiency Improvement of Geometry Optimization Procedures of a Metallic Flexor for Flat Wipers
Demands of the flat wiper, having a rather simple structure in comparison with the conventional wiper, grow rapidly in recent years. Procedures used to evaluate the appropriate geometry of a metallic flexor…
應用多重尺度分析於行動載具用電子元件承受衝擊負荷條件之瞬斷評估與驗證
電子連接器為行動載具用電子設備中重要元件，主要應用於導通並傳遞電訊號以聯絡相異電子設備。相較於一般日常用電子產品，行動載具用電子元件於製造上通常具備較嚴謹之測試規範…
農產品運銷用瓦楞紙箱於長時間運輸航程之結構強度與通風表現分析
瓦楞紙箱係各式產品運輸包裝使用最廣泛之包裝材料之一,國內常應用於農產品之海運外銷。然紙箱可能於運輸航程中因負載重量、環境溫濕度條件、及運輸時間等因素,導致其產生變形及損壞,結構強度因此為瓦楞紙箱設計重要考量因子…
斜圈彈簧致動聚四氟乙烯密封件高週期磨耗評估
斜圈彈簧致動聚四氟乙烯密封件係一裝配於往復作動之軸心抑或活塞之元件,聚四氟乙烯材料因較缺乏彈性,通常需將彈簧裝配於密封件溝槽以克服此問題。經過高週期循環運轉後,密封面之接觸壓力因磨耗增加而下降,最終可能導致密封失效…
Geometry Optimization of a Metallic Flexor for Flat Wipers
In recent years, flat wipers are gradually adopted in the industry of transportation due to the rather simple structure than the standard wiper. An algorithm is developed to evaluate the appropriateness of the geometry of a metallic flexor, one of major components of the flat wipe, in this study…
高分子材料組成與失效模型於電子連接器產業之應用
熱塑性高分子材料為現今應用極為廣泛之非金屬材料，一般而言，電子連接器主要即由銅合金彈片與高分子材料基座兩類元件組成。與電訊號元件相接觸之電子連接器，於組裝過程中，金屬端子多以劃破塑膠方式將其嵌入基座…
Thermal-Electrochemical Coupled Simulations for Cell-to-Cell Imbalances in Lithium-Iron-Phosphate Based Battery Packs
A thermal-electrochemical coupled model framework considering mass balance, charge balance, reaction kinetics, and energy balance is adopted to evaluate discharge behaviors of the lithium-iron-phosphate battery…
電子連接器密封性能檢視
發展一應用於音響設備之二合一連接器矽橡膠墊圈密封性能之系統化流程。當音響設備之背蓋放置於設計之位置時，背蓋將矽橡膠墊圈壓迫於背蓋與二合一連接器之間，將背蓋與二合一連接器間之縫隙密合…
Multi-physics Analysis for Temperature Rise of Electronic Connectors Using a Multi-scale Model
Temperature rise could be a crucial issue for some electronic connectors subjected to the relative large electrical current. A non-statistical multi-scale sinusoidal rough surface (MSRS) model is adopted to estimate the contact area between matched metallic terminals as a function of contact load…
環氧樹脂填補木材前後之損傷評估
本研究擬以數值分析探討木材三種開槽形狀(半圓加矩形、矩形、與倒三角形)與三種開槽位置(上板路開槽、水平開槽、與下板路開槽)之填補前後反應…
Applications of Laser Welding to Electric Connectors
Dimensions of electronic connectors are usually required to be reduced due to the size constraint of electronic devices. A SUS304 stainless steel sheet is integrated with a metallic shell of a micro USB connector using pulsed Nd:YAG laser spot-welding to enhance the structure strength…
高分子材料破裂模擬與其驗證
高分子材料取代金屬材料作為結構件時，常因其機械性質相對較差而導致結構件失效。本研究擬檢視廣泛應用於電子產品之液晶高分子(Liquid Crystalline Polymer, LCP)承受負載之斷裂行為。執行單軸拉伸與壓縮實驗，獲致其承受負載至斷裂之行為…
Wear Analysis and Verification of Metallic Terminals for Electronic Connectors
Insertion/withdrawal forces of metallic terminals of audio-jack electronic connectors usually decrease significantly with increasing mating/unmating cycles. One of major mechanisms causing such a phenomenon could be due to wear performed on the terminals…
Applications of Polycrystalline Model to Surface Roughening Simulations
Friction, wear, and lubrication performances between contact surfaces are usually related to the corresponding surface roughness. A Taylor-type polycrystalline plasticity model, implemented into the finite element analysis commercial software, is coded as a subroutine to investigate behaviors of an aluminum alloy with a face centered cubic (FCC) structure in the present study…
Analysis of Micro/mesoscale Sheet Stamping Processes Based on Crystalline Plasticity Model
A Taylor-type crystalline plasticity model, implemented into the finite element analysis commercial software, is coded as a subroutine to investigate behaviors of a stainless steel sheet with a body centered cubic (BCC) structure in the current study…