博碩士論文 105323095 完整後設資料紀錄

DC 欄位 值 語言
DC.contributor機械工程學系zh_TW
DC.creator何碩桓zh_TW
DC.creatorShuo-Huan Hoen_US
dc.date.accessioned2019-12-9T07:39:07Z
dc.date.available2019-12-9T07:39:07Z
dc.date.issued2019
dc.identifier.urihttp://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=105323095
dc.contributor.department機械工程學系zh_TW
DC.description國立中央大學zh_TW
DC.descriptionNational Central Universityen_US
dc.description.abstract本論文針對粉末冶金行星傘齒輪組，發展齒面嚙合與受載齒面接觸分析模型，依其理論基礎撰寫程式分析，以求得各齒對之嚙合狀況，並分析其傳動誤差、剛性變化以及行星輪之間負載分配等特性，可模擬傘齒輪在粉末冶金製程下，加工與組裝誤差對傳動精度與承載能力的影響。 本研究之直傘齒輪齒形採用具移位球面漸開線齒形，並為了提升齒輪承載能力與降低誤差敏感度，在行星輪之齒線及齒形方向上進行修整，形成雙隆起齒面修整設計。 在接觸分析模型中，使用兩軸線在空間中之幾何關係，定義加工誤差及組裝誤差，並在托架座標系中利用球面漸開線法向量幾何特性，求得各齒面嚙合位置與接觸點參數，進而分析各種誤差下之傳動誤差、背隙以及齒隙變化。 而受載齒面接觸分析模型則是以齒面嚙合分析模型與影響係數法為基礎，並考量包含齒面赫茲接觸、齒部撓曲，以及軸撓曲與扭轉等變形影響，建立數值分析方法，以解決在各類誤差下齒面受載接觸之靜不定問題。 依據上述分析方法，分析結果發現：因多對齒輪對接觸以及修整影響，在無無誤差下之傳動誤差曲線為類似拋物線型式。而在考慮之誤差中以偏位誤差敏感度最大；其次為偏心誤差，造成正弦長週期變化趨勢，使齒輪組受載時僅有單一行星輪傳遞負載，造成傳動過程中各行星輪形成交替受載之情形。而行星輪軸向誤差過大時，雖有修整但仍會造成不連續接觸，容易造成邊緣接觸產生輕微應力集中。而行星輪與側齒輪傾斜誤差與側齒輪軸向誤差對行星傘齒輪組影響不大；軸交角誤差則幾乎不影響。 本論文成果可提供設計者在設計行星傘齒輪機構之參考依據。特別是可評估特定修整量以避免邊緣應力集中，以及在加工與組裝誤差影響下，行星輪間負載分配與傳動誤差變化，預估具修整粉末冶金製行星傘齒輪組之可用性。zh_TW
dc.description.abstractThe study aims to build the Loaded Tooth Contact Analysis (LTCA) model to calculate transmission error, gears displacement and contact pair load distribution, and evaluate the gear made by powder metallurgy process including manufacturing errors and assembly errors on the sets transmission accuracy and loading capacity. The design of the spherical involute straight bevel gear of this gear sets adopts the profile shifting design and double-crowning to reduce sensitivity of the manufacturing errors. Therefore, in order to determine the appropriate amount of modification, the study developed the program based on the theorem of Tooth Contact Analysis (TCA) Model and the LTCA Model. In TCA model, the machining errors and assembly errors is defined by the geometric relationship between two axes in space, and the caculation of the meshing position and contact point of each tooth flank is based on the carrier coordinate system with the geometrical characteristics of spherical involute. The LTCA model is based on the influence coefficient method, and it can compute the tooth contact stress, loading sharing of pinions and loaded transmission errors considering with the influence of tooth bending deformation and the shaft deformation. According to the above analysis approch, the results show that the transmission error curve is composed of multi-parabolic curve due to the multiple tooth contact and tooth modification.The offset error cause the biggest influence on the load sharing, and it would let the load to be transmitted by a single pinion when loading, and the concentrated contact stress occur easily. And next, the eccentric error make the sinusoidal long period changes, and makes the single pinion under alternate loading condition. Then, eccentric error and pinion mounting distance error also cause concentrated contact stress to occur easily. And, the pinion and the side gear slant error and the side gear mounting distance error have less influence on the gear set transmission. Finally, the shaft angle error has no influence on the gear set transmission.en_US
DC.subject球面漸開線zh_TW
DC.subject齒面嚙合分析zh_TW
DC.subject受載齒面接觸分析zh_TW
DC.subject傳動誤差zh_TW
DC.subject行星傘齒輪組zh_TW
DC.subject組裝誤差zh_TW
DC.subject雙隆起齒面修整zh_TW
DC.subjectSpherical involuteen_US
DC.subjectLoaded tooth contact analysisen_US
DC.subjectTransmision erroren_US
DC.subjectPlanetary bevel gear seten_US
DC.subjectAssambly erroren_US
DC.subjectDouble-crowning modificationen_US
DC.title修整型傘齒輪行星齒輪機構之負載分析zh_TW
dc.language.isozh-TWzh-TW
DC.titleLoaded Tooth Contact Analysis of Planetary Bevel-Gear Sets with Flank Modificationen_US
DC.type博碩士論文zh_TW
DC.typethesisen_US
DC.publisherNational Central Universityen_US

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