阻滯彈性 的英文怎麼說
中文拼音 [zǔzhìdànxìng]
阻滯彈性
英文
retarded elasticity-
Since lots of factors such as pumping blood ability of heart, heart rate, vascular resistance, flexibility of main artery and big artery, body blood capability and hemal physical state can be reflected by blood pressure, it is of great importance to be one physiological parameter for body cycle system enginery
=血壓是反映心臟泵血功能、心率、血管阻力、主動脈和大動脈的彈性、全身血容量及血液粘滯性等生理參數的重要指標,是反映人體體循環系統機能的重要生理參數。After analysis of the parameters of the devices, a conclusion is achieved that we can directly use the parameters of the dampers instead of devices to design the buildings in the common situation. then a one - freedom modal is used to compare the differences of performance between these two dampers under harmonic load. finally, three buildings, which are installed with viscoelastic dampers, viscous dampers and no dampers respectively, are analyzed using finite element method, time history method and response spectrum method, and the result is the same as that of harmonic analysis
如果支撐剛度較小,應採用本文推倒的公式計算阻尼裝置的性能參數;利用單質點模型進行阻尼結構在簡諧荷載作用下的性能分析,並比較了粘彈性與粘滯阻尼結構在振動控制方面的性能差異;最後利用數值方法分別對未安裝阻尼裝置結構,安裝了粘彈和粘滯阻尼裝置的三種結構進行了反應譜和時程分析,得到了與理論分析一致的結果。Performance for a piezoresistive transducer pressure sensor to thermal and pressure environments can be predicted by finite element method. a simplified 1 / 8 model, considering silicon dioxide and nitride process as well as stack anodic bonding and adhesive bonding processes, was developed. the fem results were found to be comparable to experimental data. case studies suggested that pyrex stack induces certain amount of non - linearity, while it isolates hard epoxy nonlinear effect. flexible epoxy bonding or soft adhesive bonding is preferred to the packaging process. the viscoelasticity and viscoplasticity of bonding material will result in hysteresis and drift errors to sensor output. however, soft adhesive s influence on sensor can be ignored under relative stable environments. more over, detailed design and process information will help to improve modeling application
熱、壓環境下壓阻變換壓力傳感器的性能可以通過有限元方法預測.這里研究了簡化的1 / 8模型,模型考慮了二氧化硅和氮化硅生成過程及堆陽極鍵合和膠粘結合過程.結果發現有限元預測結果和實驗數據具有可比性.範例研究表明,硼硅堆導致產生一定的非線性,但它隔離了硬環氧樹脂的非線性.在包裝過程中最好使用柔性環氧黏合或軟黏膠性結合.黏合材料的黏彈性和黏塑性將會導致傳感器輸出的滯后和漂移誤差.然而,在相對穩定的環境下,軟黏合劑對傳感器的影響可以忽略.此外,詳細的設計和過程信息有助於提高模型的適用性This result testifies not only the efficiency of the two kinds of dampers, but also the superiority of the viscous dampers over viscous - elastic dampers
證明了粘彈與粘滯阻尼裝置對結構振動控制的有效性,以及粘滯阻尼裝置在減震方面的優越性。A uniform mathematical formula has been established for the two devices consisting of brace and viscoelastic damper or viscous damper
本文對粘彈性和粘滯阻尼器在與支撐連接后的阻尼裝置建立了統一的力學模型,並研究了支撐剛度對其性能參數的影響。The pile is assumed to be vertical, elastic and of uniform cross - section, and the soil is regarded as a linear visco - elastic layer with hysteretic damping
假定樁為豎直彈性等截面體,土為線性粘彈性體,其材料阻尼為滯回阻尼。One of these methods, passive control using viscoelastic or viscous dampers, has been applied to more and more projects in the past, because they can reduce the seismic response effectively, economically and rarely need to be repaired after they are installed
其中利用粘彈性和粘滯流體阻尼器對結構進行被動控制的方法,由於其有效性、經濟性和安裝后不再需要維護,而被越來越多的結構設計所採用。Firstly, the dynamical performance of friction damper ( frd ) and viscoelactic damper ( ved ) is tested in this paper. the work, which gets the rules that the two dampers " hysteretic curve and performance - parameters change follows the changing of excitement, lays the foundation for designing new kind of edd
論文首先進行了摩擦阻尼器和粘彈性阻尼器的動力性能試驗,獲得了兩種阻尼器的滯回曲線和性能參數隨激勵性質變化的規律,為進一步開發新型的耗能阻尼器提供了基礎。The study result is listed as follow : the transformation pseudo - elasticity property of shape memory alloys is simulated exactly with the above mentioned method of value calculation. the shape memory alloys re - centring damper presents typical " double flag " hysteretic curve, and the result accords with the theory analysis. the property of above new isolation device is excellent, the seismic response of the super - structure is significantly reduced, and the fully re - centring capacity after earthquake is obtained
研究結果表明,文中所提的數值求解方法能夠反映形狀記憶合金相變偽彈性的基本特徵;形狀記憶合金自復位阻尼器在循環荷載下呈現出典型的雙旗型滯回曲線,程序的模擬結果與理論分析相吻合;這種新型隔震裝置的性能優良,既可以大大減輕地震對上部結構的影響,同時也具有很好的震后自復位功能。The main research works and conclusions of this thesis are listed as follows. the dynamic analysis model of elastic mechanism system with damping alloy parts is deduced based on the relationship between stress and strain of the material, also the analysis model under viscous damping model, complex damping model, nonlinear damping model and viscous - elastic damping model is put forward using the finite element method
本文的主要研究工作及結論如下:從材料應力應變本構關系出發,導出了滯變阻尼模型、復阻尼模型、非線性阻尼模型、粘彈性阻尼模型下的有限單元分析模型,進而給出了含阻尼合金構件彈性連桿機構系統動力學模型。分享友人