熱力壞 的英文怎麼說
中文拼音 [rèlìhuài]
熱力壞
英文
thermal mechanism-
In recent years, commonalty tourism is developing at a tremendous pace, it makes enormous environmental pressure on scenic spots. serious artificial demolish have happened to many famous scenic spots
近年來,大眾旅遊熱的興起,給風景名勝區造成了巨大的環境壓力,許多著名的風景名勝區遭受了嚴重的人為破壞。The simulation results suggest that, at the end of the scanning line, the dissymmetric temperature field and the great temperature gradient result in the balling phenomenon and great thermal stress, which could lead to the destruction of the sintering samples in this region. because of the coupling effect between scanning lines, the balling phenomenon is increased as the increase of the scanning lines, thus the over short scanning lines should be avoided in the sintering process. different scanning strategies have significant influence on the sintering
模擬結果表明,掃描端點溫度場的不對稱及較大的溫度梯度造成了端點球化現象,並在端點處產生較大的熱應力,使燒結成形試樣易在此處破壞;激光掃描線間的耦合作用使端點球化現象隨掃描線的增加而逐漸顯著,燒結時應避免過短的掃描線;不同掃描策略對燒結成形有很大影響,交替掃描會影響燒結試樣的質量,實際製造時應採用單向掃描策略。Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )
本研究以武裝直升飛機防護裝甲材料為研究對象,採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料,結合其力學性能、掃描電鏡和界面微區能譜分析結果,分析了sic _ p al復合材料的真空燒結過程中的界面現象,以及材料增強和斷裂機理,並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態(應變率為3 . 3 10 ~ ( - 3 ) s ~ ( - 1 ) 5 . 2 10 ~ 3s ~ ( - 1 ) )的壓縮破壞響應進行了研究,分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下,材料的變形和微觀損傷機理,以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。The abvance of the high strength glass is that can prevent damage from the hard stuff collision or outside force, incase of damage, it will become pieces
高強度玻璃通過加熱處理產生強化效果,能防止玻璃因硬物或外力碰撞而造成的損壞。萬一玻璃破損也會形成碎粒狀,確保安全。Bridge health remote monitoring is a method to monitor a bridge in lineate or wireless way in real time, it changes the traditional way of monitoring by manpower, works more automatically, highly increase the response speed when any structure breakage is happened, save manpower and material resource, through this method, people can also manage many bridges in one place remotely
橋梁遠程監測是利用有線或無線通信方式實現橋梁狀態實時遠程監測的方法,它改變了傳統的以人工為主的監測手段,大大提高了橋梁監測的自動化程度,提高了對橋梁結構損壞和突發事件的反應速度,節約人力物力,是國內外的熱點研究領域。Presently the domestic and overseas scholars pay more attention to the safety problem of large - scale oilcan section, and the oilcan ' s explosion resist ability is one of pop research problems
摘要目前國內外學者日益重視大型儲油罐區的安全問題,油罐的防爆炸破壞能力成為研究的熱點之一。When wasteful war shall statues overturn, and broils root out of masonry, nor mars his sword, nor war ' s quick fire ahall burn
當戰爭的破壞拉開帷幕,炙熱的地基脫離了原來的石造工程,沒有損壞它的武力也沒有燒毀戰爭的烈火。Standard test method for determining stress - corrosion cracking resistance of heat - treatable aluminum alloy products using breaking load method
用破壞載荷法測定可熱處理鋁合金製品的抗應力腐蝕開裂特性的標準試驗方法With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。When going from 500 degrees to room temperature, the extent to which each material expands and contracts is different, this kind of microchip has a kind of strength, but if that strength is not controlled well it will break
從五百度降低到室溫,每個材料熱脹冷縮的程度不一樣,這樣晶元里就有了力,這個力控制不好就會造成破壞。It is resistant to thermal shock and unusually damage tolerant, and exhibits excellent corrosion resistance
同時它還具有良好的抗熱振性,抗破壞能力和優異的耐化學腐蝕性。In order to search the demolishing effect pf the thermal stress on the hearth and bottom of the blast furnace, the distribution of temperature field and the thermal stress have been studied with the thermal elastic law and finite element method
摘要為了探討熱應力對不同材質構成的高爐爐缸磚襯的破壞作用,在計算溫度場的基礎上,應用熱彈性理論和有限元法對高爐爐缸進行應力分佈計算。The combustor do n ' t fail if transient rise of temperature field is neglected, the stress field of combustor can n ' t cause gas film wall rupture. 2. combustor ' s creep and relaxation is calculated in steady temperature field, the results show that creep and relaxation is not main reason destroying combustor chamber
對穩態溫度場下的蠕變鬆弛計算表明,高溫下的蠕變鬆弛促使火焰筒的熱應力下降,在所考慮的條件下穩態溫度場導致火焰筒的蠕變變形不是火焰筒破壞的主要原因。Based on thermodynamics laws, inner - variable theory and analysis of conventional tn - axial tests data and breakage characteristics of loess, this paper proposed that the loess would produce elastic, plastic and nonreversible damage deformation during loading
從熱力學定律和內變量理論出發,在對常規三軸試驗數據和土樣的破壞特性分析的基礎上,認為土體在受力過程中將產生彈性變形、塑性變形和不可逆損傷變形。This paper has analyzed twenty - year climatic data of typical cities in cold area, carried on lots number of field investigations and e xperiments, and systematically discussed improvement strategies for indoor physical environment of the ground floor room of residential buildings. though investigation of its thermal, sound and lighting environment it ' s found that there are many problems in this kind of room. those are : seasonal wetness, mold and fungus growing, destroyed structure and furniture etc, insufficient illumination, and bad ventilation condition
得出寒冷地區住宅底層室內熱環境、聲環境、光環境的實際狀況,結論表明,寒冷地區住宅底層存在的問題:季節性潮濕,高濕度導致黴菌生長、繁殖,潮濕的室內環境,導致建築物維護結構的內表面受潮起鼓,引起結構破壞,室內傢具、電器、物品的損壞,使得室內的衛生狀況、人體健康都受到影響:採光的明顯不足、通風散熱能力較差等。Microstructural change and thermal shock performance of metal / ceramic graded thermal barrier coatings in thermal shock experiments were studied by scanning electron microscope and energy - dispersive spectrometry. the results showed : 1 ) metal microstructure kept intact while ceramic microstructure had been destroyed ; 2 ) thermal shock performance of coatings was interrelated with its function to relax residual stresses, therefore thermal shock performance of gradient thermal barrier coatings was better than that of terraced thermal barrier coatings ; 3 ) thermal shock performance was concerned with metal content in metal / ceramic thermal barrier coatings, which would be improved when metal content was increased
利用掃描電子顯微鏡和能譜成分分析技術研究了金屬/陶瓷梯度熱障塗層在熱震過程中的顯微組織變化及其抗熱震性能.結果表明: 1 )金屬顯微組織保持完好,陶瓷顯微組織有明顯的破壞; 2 )塗層抗熱震性能與其熱應力緩和功能密切相關,梯度熱障塗層比階梯熱障塗層具有更高的抗熱震性能; 3 )金屬/陶瓷熱障塗層抗熱震性能與其中金屬相含量有關,金屬相含量增加可改善塗層抗熱震性能4. the inspection standard has been appraised. the air stagnation parameter and water stagnation parameter are enough to evaluate the quality of evacuated solar tube and the heat loss co - efficiency can be cancelled
用空曬性能參數和悶曬性能參數來評價太陽能真空集熱管的好壞即可,取消平均熱損系數指標,空曬性能參數反映高溫能力,悶曬性能參數反映正常工作時的升溫能力。Standard test method for thermal failure of solid electrical insulating materials under electric stress
在電應力作用下電絕緣材料的熱損壞的試驗方法The objective of this research was to study the deformation and failure of ceramic thermal barrier coating ( tbc ), with and without functionally graded material ( fgm ) under thermal - mechanical loading
摘要在以激光器為熱源和機械加載的工作環境中對熱力聯合作用下含有梯度層的熱障塗層的變形和破壞行為進行研究。The first law of thermodynamics states that energy can neither be created nor destroyed
熱力學第一定律說明,能量既不能被創造,也不能被破壞。分享友人