鐓粗力 的英文怎麼說
中文拼音 [dūncūlì]
鐓粗力
英文
upset force-
The process parameters of electric upsetting include : velocities of upsetting cylinder and anvil cylinder, heating current, preheating length and time, etc. because different materials have different mechanical, electric and thermal characteristics, and there are effects between different parameters, the determination of those parameters becomes a complex problem
電熱鐓粗成形過程的工藝參數主要包括鐓粗缸活塞運動速度、砧子缸活塞運動速度、鐓粗壓力、加熱電流和預熱長度等。這些參數的選擇是一個復雜的問題，其復雜性不僅在於不同的材料具有不同的力學、電和熱傳導特性，而且各參數相互影響、相互制約。Based on investigating and technical testing, this paper researches the electric upsetting process comprehensively, puts forward a over - all parameters control system, a intelligent upsetting project, a " spherically upsetting method " and a detecting pressure ? ontrolling temperature method innovatively. it is the first time to use the intelligent control theory in electric upsetting, put forward a defect removing experts system and temperature control fuzzy experts system, as following : 1. method of reconstructing intelligent upsetting machine from a traditional one, changing the parameters to controllable
本文在理論分析、調研和工藝實驗的基礎上深入研究電熱鐓粗工藝，提出了電熱鐓粗工藝全參數控制系統、智能型電鐓機的硬體框架，提出了具有創新性的「球形鐓粗法」及檢測變形阻力? ?控制變形溫度的方法，並首次把智能控制技術運用於電熱鐓粗工藝，提出了電熱鐓粗產品缺陷消除專家系統和溫度控制模糊專家系統。Thermodynamic couple numerical simulation of ring compression of pure aluminum and tube extrusion of superalloy gh4169 is done by adopting the constant friction model and the present friction model in the paper. numerical results are compared with experimental investigations to validate the correction and nicety of the present friction model of bulk metal forming processes. the accuracy of the finite element simulation of bulk forming processes can be improved by adopting the present friction model
採用二次開發msc . superform軟體，對純鋁圓環鐓粗和高溫合金gh4169管材擠壓過程進行了熱力耦合數值模擬，比較了採用本文提出的多因素摩擦模型和常摩擦模型對圓環鐓粗和管材擠壓過程變形行為的影響，通過與實驗結果的比較，驗證了本文的摩擦模型及其參數值的正確性，也說明了多因素摩擦模型提高了有限元模擬的精度。Abstract : in this paper, the stress field in a concave plank being upset is resolved by analytic mathematical method of plastic mechanics, the relation between the geometric parameter ( dimension ratio, concave shape ) and friction shearing stress is determined for upsetting a plank free of tension stress
文摘:本文用塑性力學初等解析法求解了凹形板坯鐓粗時的應力場，確定了無拉應力鐓粗時坯料幾何參數（尺寸比、凹形形狀）與坯料端面摩擦剪應力的關系。After description of slide line fields according to the different proportion of width / diameter, the stress function in flat plate upsetting has been determined, the changing rule of slide line fields been described, the process of column upsetting been simulated by using the software of abaqus and the theoretical value been proved through comparing the simulation value with the theoretical value
摘要本文應用滑移線理論來求解平板鐓粗模型，描述了在不同寬徑比下的滑移線場，確立該模型單元的應力場表達式，描述其滑移線場的變化規律，最後運用abaqus軟體對圓柱體鐓粗進行數值模擬，將模擬值與理論值進行對比，對理論值進行驗證。Abstract : in this paper, the stress field in a long rectangle platen being upset ( after bulge profile emerging ) is resolved by mathmatic analytic metho d, the tension stress zones formed elliptic shape curves in upset are found thro ugh quantitative calculation, the relation between the zones and the basic upsett ing parameters is obtained
文摘:本文用數學解析法求解了矩形長板鐓粗時（出現鼓肚）的應力場，定量計算出鐓粗體內存在呈橢圓曲線的拉應力區，並得出拉應力區與鐓粗基本參數的關系。分享友人