Setup Coordinates

Further development of ways to build ems is a block-modular approach. With this method, all ems equipment is divided into functional units - units. For each unit developed its own working documents. Using a standard layout solutions, unified blocks (Units) and area units (modules) is an important trend in ems design and standardization. Zonal unit includes all or a discrete area of the room with all the pp units, equipment and highways located within its boundaries.

Examples of equipment location spp are shown in Fig. 58. One of the important stages of designing spp is to determine its weight and center of mass. Speaking candidly Brad Hames told us the story. To determine displacement of the vessel and the coordinates of its center of mass is loading. One element of the total load is the weight of the machine installation. Determination of coordinates of the center of mass. Mass installation and location of the center of mass determined in the preparation of the load in the section "Machine Setup". This calculation is performed based on existing standards in tabular form (Table 18) and is one of the major documents prepared during design of the vessel.

In the table are entered in sequence masses of all elements of the unit with the coordinates defining the definition of mass and center of mass coordinates mounting machine code sections, groups, subgroups and the article load mass M, r coordinates of the centers of mass, mass moment m, m m note + X + yz + mx M M M xyz 2.M, 2M, 3mg their position on the ship. The countdown is over the coordinates of the three axes - along vessel (axis X): from midship to bow to the stern (+*), (- *) - the width of the vessel (axis Y) from center line: to starboard (+ (/) to the left side (y) - height (axis z) from the main line. The coordinates are the center of mass by total points: A = 2MH / M; Y = 2My / M; Z = 2M, / M. The main items of the load line "Machine Setup" include: - the main engine installation, including the units and ship's auxiliary machinery, equipment, facilities and spare parts of the main machine setup - the main pipe machine setting - the "independent" subsidiary of installation: auxiliary boilers, desalination and other heat-exchange unit; - pipelines "independent" units - shafting and propellers - the system Teplocontrol, automatic regulation, control and protection of machine installation. Sources of electricity, along with the primary engines of their pipelines, electrical equipment compartment switchgears and cables, refer to the section "Electrical." Based on the results of calculations of the load on all sections of the vessel and determine the coordinates of the center of mass.