pretightening force 中文意思是什麼
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According to the analysis of the table lookup, the graph method and the simulating formula method of selecting bolt diameter without controlling pretightening force under dead load were presented in this paper
摘要通過對查表法資料進行分析，提出了靜載時選擇不控制預緊力的緊螺栓聯接螺栓直徑的圖線法和模擬公式法。 -
The effect of pretightening force on the stress of hole ' s edge of point - support glass is analysed and researched in the article, and the valuable laws and conclusions are educed
在本文中，把緊固件預緊力對孔邊應力的影響做了較深入的分析和研究，得出很有實用價值的規律和結論。 -
With prestressed rolling mill of the middle steelworks of taiyuan iron and steel limited group company as the researched object, this article analyze the existent questions and research the initial stress of prestressed rolling mill and computer control system, analyze the design thought of prestressed rolling mill and clarify the relationship between the dimensional precision of rolled material and the rigidity of base of rolling mill and the main method to increase the rigidity of base of rolling mill, analyze how to confirm the rigidity, sectional area of handle and post, and pretightening force, put forward the viewpoint that the key to assure great rigidity is to assure that the remnant initial stress is always positive during rolling, and develop intelligent control system with plc as the core on the basis of the former research to assure that the remnant initial stress is always positive during rolling
本文以太鋼集團公司中型型鋼廠預應力軋機為對象，分析了該廠預應力軋機所存在的問題，對預應力軋機的預應力以及微機控制進行了系統研究；分析了預應力軋機的設計思路，闡明了軋材尺寸精度與軋機機座剛度的關系及提高軋機機座剛度的主要途徑；分析了預應力軋機設計過程中預應力軋機的剛度、預緊拉桿和機架立柱斷面積及預緊力的確定；提出了預應力軋機保證高剛度的關鍵就是「確保軋制過程中，殘余預應力始終大於零」的觀點；在前述研究的基礎上開發了以可編程邏輯控制器為核心的智能監控系統，以確保「軋制過程中，殘余預應力始終大於零」這個要求。 -
And the stress of hole ' s edge is affected obviously by the installation pretightening force for fastener which acts directly on the stress concentration region
而安裝緊固件產生的預緊力又直接作用於孔邊的應力集中區域，對孔邊應力有較大的影響。 -
And based on these, the view that the optimal installation pretightening force for fastener exists is proposed. additionally, the method for the optimal installation pretension is offered. the conclusions provides practical significance for engineering practice
在此基礎上，提出存在最佳安裝預緊力的觀點，並給出了確定最佳安裝預緊力的計算方法，其結論對指導工程實踐有重要意義。
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