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shock load 沖擊負載;突加負載。

shock mount

The results show that , the process of quasi - isentropic compression on target can be seen as the successive overlap of a series of small shock loading waves generated by the transient layers . the design for flier - plates with graded wave impedance should conform to the parabolic or cubic function relationship between the impedance and the thickness 波阻抗按高冪次函數(冪次在二次至三次之間)分布的梯度飛片能夠獲得波形較好的準等熵壓縮波,并且靶板的厚度不宜太小也不宜太大。

The physical process of generating quasi - isentropic compression on target via flier - plates with graded wave impedance might be considered as the successive overlap of a series of small shock loading waves generated by the transition layers in the flier - plate . as a result , the p - v curve of the target was a quasi - isentropic compression curve , which consisted of small hugoniot curves ( similar to isentropic curves ) from different original states , and was located between the hungoniot curve and isentropic curve but closer to the latter 波阻抗梯度飛片對靶板的壓縮過程是一系列弱沖擊加載波相繼發生作用疊加的結果,靶板由此獲得的p - v線是一組通過不同起始狀態點的hugoniot線的連線,這條連線可以近似看作是由小段小段等熵線連接而成的準等熵線。

The obtained results has been shown that the temperature field of sfrc pavement structure is non - linearly distributed along its thickness . the temperature which is close to the surface changes quickly , whereas slowly which is far . under the affect of temperature field , the temperture stress of sfrc pavement structure is also distributed non - linearly . the deflection and stress responses of sfrc pavement structure are waved declingly under the effect of shock load 計算結果表明:鋼纖維混凝土路面板結構的溫度場沿其厚度方向呈非線性分布;在距路面表面較近的地方,溫度變化較快,而在距路面表面較遠的地方,溫度沿厚度方向的變化較為緩慢,整個圖形呈下凸形。鋼纖維混凝土路面板在上述溫度載荷的作用下,其溫度應力沿其厚度方向呈非線性分布。

In this paper , firstly according to fourier heat conduct ~ quation , the analysical solutions of the temperature field of sfrc pavement structure were obtained and the finite element solutions were soluted by means of galerkin weighed residual methoded . secondly , based on the temperature field , the analysical solutions of the temperature stress of sfrc pavement structure were dissolved with westerguard - bradbury method , and then the finite element solutions were obtained by means of the finite element method . at last , the dynamic response of sfrc pavement plant structure affected by shock load with the finite element method was studied , and the deflection and stress response under shock load was calculated 其次,根據已求得的溫度場,利用威斯特卡德-布拉德伯利法求解鋼纖維混凝土路面板結構的溫度應力的解析解,然后又利用有限單元法對由溫度變化產生的溫度應力進行求解。最后,作者利用有限單元法分析了鋼纖維混凝土路面板結構在沖擊載荷作用下的動力響應,計算了由沖擊載荷引起的撓度響應及應力響應。

Now , the scholars of internal and overseas pay close attention to the mechanics function of sfrc , such as in the references [ 3 , 13 , 14 , 16 , 23 , 27 , 28 , 29 ] , and so on . however , in the practice pavement engineering project , the sfrc is given not only the effect of vehicle and shock load , but also the effect of the temperature changes and sun radiation . therefore , the temperature and load stress are the main factor of the damage of the rigid pavement structure . because of the existent of the temperature stress , the sfrc pavement structure may be destroyed by the expand of crack . therefore , the research and analysis of the temperature load and stress of sfrc pavement structure are important to control the crack of sfrc pavement structure 目前,國內外學者對鋼纖維混凝土的研究著重于鋼纖維混凝土的力學性能,如文獻[ 3 , 13 , 14 , 16 , 23 , 27 , 28 , 29 ]等。而鋼纖維混凝土在實際路面工程的應用中,不僅要受到路面車輛移動載荷和沖擊載荷的作用,還要承受路表的溫度變化及日輻射的作用,所以溫度應力與車輛荷載應力同樣都是剛性路面產生破壞的主要因素。由于溫度應力的存在,會引起鋼纖維混凝土路面板結構產生裂紋。

The results showed that quasi - isentropic compression energy waves were produced after the impact , whose initial velocity jump , peak velocity and front ' s rise - time were all different from the general shock loading wave profiles . furthermore , the higher the impact velocity , the smaller the extended wave ' s front while the higher the peak velocity 結果表明,梯度飛片擊靶后產生的是波陣面明顯被展寬的準等熵壓縮波,準等熵壓縮波的初始速度跳躍、速度峰值和波陣面前沿的上升時間都呈現出不同于傳統沖擊波陡峭上升波形的特征。

The results showed that quasi - isentropic compression energy waves were produced after the impact with mg - face of the flier - plate , whose initial velocity jump , peak velocity and front ' s rise - time were all different from the general shock loading wave profiles 結果表明,梯度飛片正向擊靶后產生的是波陣面明顯被展寬的準等熵壓縮波,準等熵壓縮波的初始速度跳躍、速度峰值和波陣面前沿的上升時間都呈現出不同于傳統沖擊波陡峭上升波形的特征。

Laser interferometer systems provide a means for probing the refractive index of transparent specimens subjected to dynamic compression . previous interferometer measurements of optical properties under shock loading are reviewed 在國內首次分析利用加窗visar技術測試沖擊載荷下晶體折射率的理論,并建立了實驗測試技術與系統,對小于20gpa沖擊壓力下的lif晶體折射率進行了測量。

The physical process of quasi - isentropic compression might be considered as the successive overlap of a series of small shock loading waves generated by the transition layers in the flier - plate 波阻抗梯度飛片對靶板的壓縮過程是一系列弱沖擊加載波相繼發生作用疊加的結果,靶板由此獲得的尸一v線是一組通過不同初始狀態點的hugoulot線的連線

The paper expounds and estimates the status quo of research into rock blasting theory in aspects of blasting fracture rock , rock properties under the shock load , and numerical modelling of rock blasting 本文從裂隙巖體爆破、沖擊荷載作用下巖石特性、巖體爆破數值模擬等方面論述、評價了巖體爆破理論的研究現狀。

With strong extruded nylon ( polyamide ) carcasses , and a variety of rubber covers , these belts offer the optimun mix of performance , shock load capability , longevity and ease of installation 新田傳動平皮帶以尼龍物料為骨桿,配以不同程度的橡膠面層,強化皮帶的整體表現及使其更耐用。

Investigation on the dynamic displacement response of thin spherical aluminium shell under blasting shock loading of explosive charge 空中爆炸沖擊波作用下薄壁鋁球殼體大變形響應的實驗研究

Hinge ? designed to withstand the shock load of quick closing to insure longer life and continued shut - off 鉸鏈-能夠承受迅速關閉而產生的沖擊負載,確保使用壽命更長和連續關閉。

Numerical simulation of damage evolution on mechanical behavior and tensile spallation of pure aluminium under laser shock loading 強激光輻照下純鋁動力學響應和層裂的數值模擬

Emgear ep oils are suitable for heavily loaded industrial gear sets and for gears that are subject to shock loading Emgear ep適用于重負荷及高沖擊負荷操作下的工業齒輪組。

An investigation on the fracture mechanism of concrete under different shock loading in water 不同沖擊載荷下水中砼破壞機理的初步研究

Heavy shock load 重沖擊負荷

Light shock load 輕沖擊負荷

Medium shock load 中沖擊負荷