input and output devices and their examples
SAP2000® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures
Ngày tải lên :
06/09/2012, 15:56
... EFFORT AND EXPENSE HAVE GONE INTO THE
DEVELOPMENT AND DOCUMENTATION OF SAP2000. THE PROGRAM HAS
BEEN THOROUGHLY TESTED AND USED. IN USING THE PROGRAM,
HOWEVER, THE USER ACCEPTS AND UNDERSTANDS ...
spacing in the X, Y and Z direction. Set the number of grid spaces to
10 for the X direction, and to 1 for the Y and Z directions. Type 6 ft
into the X direction spacing edit box and press the Enter ...
Subdivide command to bring up the form in Figure 13. Select the
Auto Subdivide Frame option and check the at Intermediate Joints
and at Intersection with Other Frames check boxes, and click OK....
- 47
- 1.4K
- 2
Mechanisms and Mechanical Devices Sourcebook - Chapter 3
Ngày tải lên :
22/10/2012, 14:26
... the raising and lowering of the transport is accomplished by a cam. The shafts,
F, E,
and D are positioned by the frame of the machine. Special bell cranks support the transport
and are interconnected ... breaks
while the machine is running, the unsupported idler carrier falls to
the base of the standard, and when the standard arrives at the sta-
tion in the raceway adjacent to the cam C, the lug L on the ... pins back to their original position is fastened on the machine frame. The two motors are stopped and reversed until the
seam has passed through rollers before they are stopped and reversed again.
Fig....
- 41
- 567
- 1
Mechanisms and Mechanical Devices Sourcebook - Chapter 4
Ngày tải lên :
22/10/2012, 14:26
... near standstill.
In the disengaged position, the angu-
lar velocity ratio between the output and
input shafts (the “gear” ratio) is entirely
dependent upon the design angles
α
and
β and independent ... drive, the two rollers drive the output shaft
and lock it during dwell periods. For each revolution of the input shaft,
the output shaft has two motion periods. The output displacement ϕ
is determined ... cam, the input shaft would drive the output
gear by the worm gear at constant speed. The worm and the bar-
rel cam, however, can slide linearly on the input shaft. The rota-
tion of the input shaft...
- 33
- 507
- 0
Mechanisms and Mechanical Devices Sourcebook - Chapter 5
Ngày tải lên :
22/10/2012, 14:26
... The input
then drives the output with the bevel
gears. Rotating the adjusting shaft in a
plane at right angles to the input- output
line changes the relative radial position
of the input and output ... 138
134
TWELVE EXPANDING AND CONTRACTING DEVICES
Parallel bars, telescoping slides, and other devices
that can spark answers to many design problems.
Fig. 1
Figs. 1 and 2 Expanding grilles are ... continuous
rotary input motion into an output that oscillates the shaft back
and forth.
Sclater Chapter 5 5/3/01 11:47 AM Page 170
inputs, and z is the output. The motion of x and y in the same...
- 46
- 572
- 0
Mechanisms and Mechanical Devices Sourcebook - Chapter 6
Ngày tải lên :
22/10/2012, 14:26
... ARRANGEMENTS
Differential, duplex, and other types of
screws can provide slow and fast feeds,
minute adjustments, and strong clamping action.
Rapid and slow feed. With left- and right-hand
threads, slide motion ... and neg-
ligible hysteresis characteristics. The
bearing is radiation-resistant and can be
used in high vacuum conditions or in
environments where there is dirt and
contamination.
185
TAUT BANDS ... linear spring rate and high load
resistance with small deflections.
For height to spring ratios between
0.8 and 1.0—An almost linear spring rate
for fasteners and bearing and in stacks.
For rations...
- 25
- 380
- 0
Mechanisms and Mechanical Devices Sourcebook - Chapter 7
Ngày tải lên :
22/10/2012, 14:26
... magnetic signal amplification. A rotating input avoids a lin-
ear input and output of the simple windlass. Control and output ends of the mul-
titurn bands are both connected to gears mounted ... motor, the maximum output speed
will be 1200 = 3984 rpm, and the
minimum output speed = 3984/11 = 362
rpm.
Double-reduction system (Fig. 3).
Solid sheaves are on both the input and
output shafts, ... conveying, and elevating.
STANDARD ROLLER CHAIN—FOR POWER TRANSMISSION AND CONVEYING
SINGLE WIDTH—Sizes
5
⁄
8
in and smaller have a spring-clip connect-
ing link; those
3
⁄
4
in and larger...
- 42
- 493
- 0
Mechanisms and Mechanical Devices Sourcebook - Chapter 8
Ngày tải lên :
22/10/2012, 14:26
... motor com-
parable in size and power to those used in
standard reel-to-reel recorders, and a
large bi-peripheral flywheel and sturdy
capstan that reduces wow and flutter and
drives the tape. A patent ... balance between
transmitted torque and operating life.
Input and output functions always
rotate in the same direction, irrespective
of the number of bearings, and different
results can be achieved ... of
the input shaft. Input shaft
a carries spur
gear
c, which has approximately twice
the face width of spur gears
f and d
mounted on output shaft b. Spur gear c
meshes with idler e and with...
- 52
- 642
- 0
Mechanisms and Mechanical Devices Sourcebook - Chapter 9
Ngày tải lên :
22/10/2012, 14:26
... clutch, on the other hand, is a three-member unit
with rotating input and output members and a stationary coil
housing. It eliminates the need for brushes and slip rings, but it
demands additional ... Page 317
336
LINKAGES FOR BAND CLUTCHES
AND BRAKES
Fig. 1 An outside band
clutch operated by a roller
and cone.
Fig. 2 An outside band
clutch made as two half
wrap bands with an interme-
diate ... faster.
Edges of the clutch bands carry the
entire load, and there is also a compound
action of one band upon another. As the
torque builds up, each band pushes down
on the band beneath it, so each...
- 46
- 410
- 0
Mechanisms and Mechanical Devices Sourcebook - Chapter 10
Ngày tải lên :
22/10/2012, 14:26
... electric machinery and protect
it and its operator.
Actuators Linear mechanical switches
Sclater Chapter 10 5/3/01 1:08 PM Page 356
CHAPTER 10
TORQUE-LIMITING,
TENSIONING, AND
GOVERNING DEVICES
Sclater ... mecha-
nisms. Typical examples of such a system are steel mill strip
lines, textile processing equipment, paper machines, rubber and
plastic processers, and printing presses. In each of these examples,
the ... radially, the input- output ration changes. By properly arrang-
ing the rings and springs, the gear ration can be controlled by the
movement of the balls to maintain a constant value of output speed.
Sclater...
- 29
- 510
- 0
Mechanisms and Mechanical Devices Sourcebook - Chapter 11
Ngày tải lên :
22/10/2012, 14:26
... POWER
Cartridge-actuated devices generate a punch that cuts cable and pipe,
shears bolts for fast release, and provides emergency thrust.
Sclater Chapter 11 5/3/01 1:17 PM Page 402
Fig. 1 Automatic weighing and ... simplicity, and cost.
Fig. 1 A bimetallic sensor is simple, compact, and precise.
Contacts mounted on low-expansion struts determine slow make-
and- break action. A shell contracts or expands with ... single-gland type.
Automatic wear control compensates for normal wear and
maintains volumetric efficiency. This pump will handle 5 to
300 gph without churning or foaming. It needs no lubrication
and...
- 35
- 430
- 0