機械致熱 的英文怎麼說
中文拼音 [jīxièzhìrè]
機械致熱
英文
mechanocaloric-
The conclusions obtained as follows : firstly, the structure ' s free frequency is decreased by the reduction of the mechanical property of the material with the increasing temperature ; secondly the thermal stress produced by the temperature gradient may decrease or enlarge the structures natural frequency ; thirdly, the variety of natural frequency of the alloy structures effected by the heat effect apparently higher than that of the composite material structures
最後，採用ansys程序分析了合金材料、復合材料的板、彈體結構的熱振動特性。在不同的熱載條件下，取得以下結論：升溫導致的材料機械性能下降都會降低結構固有頻率，而溫度梯度產生的熱應力可能降低也可能提高結構的固有頻率；金屬材料結構的固有頻率受溫度的影響要比復合材料結構的固有頻率受溫度的影響要明顯。Hot forge japanese material to shape fibreflow in order increase mechanical properties, valve stem, groove and face are machined by numerical control grinding machine with excellent quality and conformability
採用日本進口原材料，熱鍛成型沖壓保證金屬流線，提高機械性能，桿部、溝部、錐面均採用靜壓數控磨床加工，品質穩定、產品一致性良好。In chapter 1, the magnetostrictive mechanism of the giant magnetostrictive materials and the main features of the materials are introduced briefly, and the research background including the materials applications in abroad and home is given. furthermore, the problems existing in the update applications are pointed out. especially the various applications of the magnetostrictive material in fluid power - transmission and control are also introduced
本文從超磁致伸縮材料的主要特點及其應用概況出發，以國產的超磁致伸縮材料為基礎，進行了超磁致伸縮電?機械轉換器的結構及在流體控制元件中應用的研究，探討了超磁致伸縮電?機械轉換器常用的熱補償方法，並結合流體控制元件的具體特點，採用熱補償管進行熱補償。This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory
本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。The thermal activation by reason of the mechanical activation has promoting effect on the mechanical activation. furthermore, the mechanical activation assures the final powders are in nanometer - size. otherwise, for the first attempt of ma in the reaction system of metal - macromolecule or oxide - metal - macromolecule, author investigates the synthesis of nanometer - sized tic from petroleum coke by using reactive milling and dual activation reactive milling
機械激活作用是整個「雙重激活反應研磨」機制的基礎：機械激活導致熱激活的產生，而熱激活又將加強機械激活的效果；機械激活作用貫穿于整個反應過程之中，並保證了最終產物在較小尺寸范圍內。The extremely harsh working conditions directly result in high thermal and mechanical loads in diesel engines " piston assemblies, and so due to high stress it becomes one of the most vulnerable components assembly in diesel engine. piston assemblies " failures such as cylinder sticking, scoring, gumming, etc., greatly limit diesel engines " durability and reliability
由於長期工作在惡劣的環境下，柴油機活塞組要承受很高的熱負荷和機械負荷，這些負荷所產生的高綜合應力影響了它的使用壽命，其可能導致的咬缸、拉缸、結焦等故障極大地危害了柴油機整機的耐久性和可靠性。The unstable stacking of layers of org - mmt was easily damaged under force and heat. hence, it is very important to decide the process temperature for preparing the composites, and it was found that 200 was a upper limitation of temperature
由於在高熱（ 200以上）或強機械剪切作用下，蒙脫土層狀堆疊結構會坍塌，導致不能與聚合物分子作用生成聚合物?層狀硅酸鹽納米復合材料，因此熔融插層的溫度選擇顯得十分重要。It results in great degradation of the properities of spacecraft surface materials such as the solar absorptance increase of thermal control coatings, mechanical properties damage of thin films, et al
它會導致航天器的表面材料性能發生極大的退化，例如熱控塗層太陽吸收率上升、薄膜材料機械性能變壞、變脆等等。The methods of toughening epoxy resin by thermotropic liquid crysalling polymer ( tlcp ) are summarized and the theories on toughening epoxy resin by tlcp are put forward in this paper
摘要在22篇參考文獻的基礎上綜述了熱致性晶聚合物增韌環氧樹脂的研究進展，主要包括工藝、機械性能、耐熱性能、增韌機理等，並指出今後研究的方向。Many kinds of the heat sources ( frictional heat, cutting heat, ambient temperature, etc ) in machining system produce a kind of temperature distribution. this temperature distribution induces thermal deformation between machine tools, tool, work - piece and work holding fixture. this deformation affects the relative displacement between the work piece and the cutter, causes the manufacturing errors, and influences the machining accuracy of the work - piece
在機械加工中，工藝系統在各種熱源（摩擦熱、切削熱、環境溫度、熱輻射等）的作用下，產生溫度場，致使機床、刀具、工件、夾具等產生熱變形，從而影響工件與刀具間的相對位移，造成加工誤差，進而影響零件的加工精度。Different causes, including congenital malformations, mechanical trauma, chemical injury, thermal burns and other skin diseases can be caused by abnormal eyebrow
不同的病因，包括先天畸形、機械創傷、化學傷、熱燒傷和皮膚病等均可致眉異常。分享友人