Tài liệu The Design Of Manufacturing Systems P2 pptx

... integrated design- manufacturing systems is the incompre- hension of the language of Computer-Aided Manufacturing (CAM) systems by the Computer-Aided Design (CAD) systems. The CAD systems were initially ... Typically, the designer designs a product with minimal knowledge about the capabilities and limitations of the manufacturing technology. The designer...

Ngày tải lên: 25/01/2014, 13:20

... integrated design- manufacturing systems is the incompre- hension of the language of Computer-Aided Manufacturing (CAM) systems by the Computer-Aided Design (CAD) systems. The CAD systems were initially ... Typically, the designer designs a product with minimal knowledge about the capabilities and limitations of the manufacturing technology. The designer...

Ngày tải lên: 19/01/2014, 18:20

... assumed that the production rate (r ijt ) of the main product j of each such scheme is proportional to the capacity of the plant. where M i denotes the index set of main products of the alternative ... chop off the solution point from the space of the LP relaxation polyhedron. The process is repeated, thereby reducing the gap between the MILP and its LP re...

Ngày tải lên: 19/01/2014, 18:20

... assumed that the production rate (r ijt ) of the main product j of each such scheme is proportional to the capacity of the plant. where M i denotes the index set of main products of the alternative ... chop off the solution point from the space of the LP relaxation polyhedron. The process is repeated, thereby reducing the gap between the MILP and its LP re...

Ngày tải lên: 25/01/2014, 13:20

... accuracy of the workpiece mainly depend on the axial rigidity of the spindle headstock and of the rotary table. Therefore, the rigidity of the thrust bear- ings is especially important. To increase the ... conditions as the expansion of the rotating parts due to the effects of heat and centrifugal force do not cause jamming of the outer rings in the housi...

Ngày tải lên: 25/12/2013, 05:17

... bearing aspects of the applications. The operation of the machine allows conclusions to be drawn about the operating conditions which dictate the bearing type and design, the size and arrangement, ... roughening of the surfaces (increased running noise). Bearing dimensioning The size of the bearings is dictated by the shaft diame- ter, which in turn is based on t...

Ngày tải lên: 23/01/2014, 04:20

... clearance Due to the tight fits, the inner ring of the bearing is expanded and the outer ring with the roller-and-cage assembly is contracted. Thus the radial clearance of the bearing is reduced ... V1. Bearing selection The selection of the bearings is primarily based on the main thrust, which is directed downwards. It is made up of the weight of the rotor...

Ngày tải lên: 25/12/2013, 05:17

... selection The axial load of 130 kN is made up of the weight of the rotor and the two variable top and bottom fan im- pellers as well as the thrust of these fan impellers. They are supported by the ... V1. Bearing selection The selection of the bearings is primarily based on the main thrust, which is directed downwards. It is made up of the weight of the rot...

Ngày tải lên: 23/01/2014, 04:20

... that consist of the horizontal component of the compression in the arch, and the horizontal restraint at the level of the springings. The horizontal component of the force in the arch remains ... force on the concrete and reducing the shear friction. Another way of understanding this action is to imagine the surface of the joint as serrated. If the co...

Ngày tải lên: 18/02/2014, 18:20

Ngày tải lên: 19/02/2014, 14:20