机械设计第五章课后习题(国外英文资料).docVIP

机械设计第五章课后习题(国外英文资料) This is the fifth chapter of mechanical design (2007-10-23 09:10:34) reprinted Tags: Campus life Mechanical design The fifth chapter After class, Problem sets The answer ? This is the fifth chapter of mechanical design The analysis compares the characteristics of common thread, pipe thread, trapezoidal thread and serrated thread, each of which shows their application ? ? What are the advantages of doing a small portion of the light rods of a connecting bolt with the axial variable load? ? 5-2 analysis of the force change of the piston type air cylinder cover bolt at work, its maximum stress, and how can the minimum stress be obtained? What is the highest pressure in the cylinder? How does the minimum stress change when the force increases? ? 5-4? As shown in figure 5-49 bottom bolt team to accept the F Σ forces in contains the x axis is perpendicular to the bottom of the joint plane. Analyze the force situation of the panel bolt and determine which bolt is the most stressed? What are the necessary conditions for the security work of the borg? ? The 5-5 figure 5-50 is a gantry crane guideway that is welded by two side plates and a piece of bearing plate. The two sides are joined by four bolts and columns, the maximum load is KN, and the load has a large change. A: is the bolt connection suitable for using the normal bolt or the hinge pin? Why is that? ? The sides of the 5-6 known bracket are connected to the adjacent racks with six bolts. The bracket is the load function of the vertical axis of the side plate bolt and the distance is the mm, the size of 60KN. The two kinds of bolts shown in figure 5-51 do not know the type of bolts, and the hinge holes are used to connect the bolts, and which type of bolts are smaller in diameter? Why is that? ? The 5-7 figure 5-52 shows a pull bar thread connection. The payload, F = 56KN, is known in Latin and the load is stable, and the Latin material is Q235. ? The 5-8 metal plates are joined by two M12 common