How to calculate the uniformly distributed force

1.

The method of calculating the moment of uniformly distributed load Q to the point:

the formula used:

1, M = f * D (the moment is equal to the resultant force multiplied by the arm of force)

d is the distance from the point of action to the straight line along the direction of force passing through the center of gravity of the triangle

D is not the distance between two points, but the distance between a point and a straight line

2, f = 1 / 2aq (a is the length of the bottom edge, q is the maximum line load)

resultant force F is the area of the load distribution, which is generally a right triangle

In this case, the uniformly distributed load can be regarded as a concentrated force acting in the middle × eighteen × 9 is to regard the uniformly distributed load as a concentrated force acting on point C, and then calculate the moment at point D. the formula you said is 1 / 2 * QL & # 178;, In this question, l = 18

{rrrrrrr}

extended data:

the difference of moment between uniformly distributed load and concentrated load:

1. The load is different in the picture, and the bending moment diagram of concentrated load will appear sharp point

When the load is continuous and equal in size, it is called uniform load. The uniformly distributed load per unit area is called the uniformly distributed surface load, which is usually expressed by the letter Q, and its unit is n / M & # 178 Newton / square meter) or kn / M & # 178 Kn / m2)

3. The uniform load per unit length is called uniform load, which is usually expressed by the letter Q, and the unit is n / M (n / M) or kn / M (KN / M)

4. Concentrated load refers to the load of reaction force acting on a point, which is called concentrated load, and its unit is kilonewton. The simple point is that the load acting on a point is called concentrated load. For example, if the structural column is arranged on the beam, then the load at this point is called concentrated load

2. Unknown_Error

3. Starting point (Tianjin Dagang Oilfield No.3 hospital)

1, walk 350 meters to the first middle station of the oilfield

2 take bus no.688 and NO.160;, After 43 stops, get off at Dagu South Road station&# 160;

3 walk 430 meters to Tucheng station

4 take the subway line 1 & # 160;, After 7 stops, get off at Erwei Road station C mouth out) & 160

5 walk 630 meters to Tianjin Central obstetrics and gynecology hospital station

end point (Tianjin Central obstetrics and Gynecology Hospital)

4. Work = force * distance of the object moving in the direction of force

an object in the earth is affected by the gravity of the earth. When it is only affected by gravity, it accelerates uniformly. If an object in space needs to accelerate uniformly, there are two situations: one is that it is not subject to any force, and the other is that the resultant force of all forces is zero

on the supplementary question: according to the formula, the work done by the force is only related to the size of the force and the distance of the object moving in the direction of the force, and has nothing to do with the initial velocity, the mass of the object and other factors

after answering, children, you should read more textbooks.

5. FL is the waste (f) water riser (L) and WL is the waste (W) water riser (L). As for Q, it depends on the drawing. Maybe it's the code of skirt (q) building.

6.

A unit of volume

FL: soaring, 1fl is equal to 1 cubic micron

normal reference value: MCV = 82-95fl, 1000 μ L is equal to 1 μ L, 1000 μ L is equal to 1 ml, 1000 ml is equal to 1 L, that is, 1fl = 10 ^ (- 9) l

1m3 = 1000 cubic decimeter = 1000000 cubic centimeter = 10000000000 cubic millimeter

the advance rate between adjacent volumes or volume units is 1000. High level units are converted into low level units and multiplied by the rate of advance; Low level units are converted to high level units divided by the rate of advance

{rrrrrrr}

< H2 > extended data:

conversion to volume unit

1 cubic meter = 1000 liter = 1000 cubic decimeter = 1000000 ml = 1000000 cubic centimeter = 1000000000 cubic millimeter

1 liter = 1 cubic decimeter = 1000 ml = 1000 cubic centimeter = 1000000 cubic millimeter

cubic foot / CUF / Cu. Ft) = 1 cubic foot = 1 (FT & # 179;)= 0283 m3 (M & # 179;)= 28.317 liter = 28.317 cubic decimeter (DM & # 179;)= 28317 CC = 28317000 CC

7. You can see from the beginning that Q is the most rubbish standard. Most of them are alcohol. There are national standards of wine, can be regarded as normal wine, GB start.

8. Goko, small currency does not trade

9. If someone sent it to you, you can click it directly. It should be done directly. After downloading, his invitation code will appear on the page. Then you can fill in it and bind it. Then you can also use it