頻變蠕變 的英文怎麼說
中文拼音 [bīnbiànrúbiàn]
頻變蠕變
英文
catastrophic creep-
The expressions of the creep damage is acquired by performing the plexiglas creep test and the fatigue test at the different frequencies. the method for separating the creep damage from the fatigue damage is set up through the analysis. the life under the joint action of the creep and the fatigue was estimated with this method, which is compatible with the test results, so this method is of satisfactory ability in life prediction
開展了有機玻璃蠕變試驗和不同頻率下的疲勞試驗，擬合得出了蠕變損傷計算公式，通過研究，建立了蠕變損傷和純疲勞損傷的分離方法，並用此方法對蠕變/疲勞共同作用下的壽命進行了預測，與試驗結果吻合較好，說明該方法有很好的壽命預測能力。Undoubtedly, deterioration and damage accumulation occur in high temperature and high pressure. with the consumption of their use, the failure accidents occur more frequently, which will bring threatening to the life of people and the poverties of enterprise. so the failure analysis and the residual life assessment of the main steam pipe become more and more urgent and important
以蠕變性能作為設計指標的主蒸汽管道是發電廠的關鍵部件，由於長期在高溫高壓的惡劣工況下運行，容易發生材質老化和損傷積累，突發性事故也會頻頻發生，給企業職工的生命安全和國家財產帶來嚴重威脅，因此對主蒸汽管道進行失效分析與壽命預測尤為迫切和重要。This can be reduced by borrowing close loop feedback which cost great and make the system more complex. with charge driver the pizeo acuter works under ideal linear. but charge driver is lack of low frequency stability
而採用電壓驅動方法控制壓電陶瓷，開環時存在遲滯、蠕變和位移非線性;採用電荷驅動方法，開環控制線性良好，但低頻穩定性差。
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