نتایج جستجو برای: multi axial loading

تعداد نتایج: 581643  

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 2001

2013
Xianjin Shi Hongqi Liu Gang Sun Baochao Wang

Power head is the main motive mechanism of rotary drilling rig. High axial pressure and high frequency is one of its typical working conditions. Axial loading test is a key point in power head performance tests. Overall design, system theoretical analysis and simulation of power head axial loading system were carried out. The bond graph model and state equations of power head axial servo loadin...

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