Download presentation
Presentation is loading. Please wait.
Published byKarly Seader Modified over 10 years ago
2
Importing Model to Ecotect Anaysis.
3
.3ds geometry--Ecotect
5
Conclusion: Analysis will retard or take long time.
6
Revit and Ecotect Tag the object carefully in Revit for gbxml filetype!
7
Revit model tagged as shaded part and untagged as un-shaded part. To import gbxml format from revit for analysis, whole part should be completely tagged
8
Conclusion: Analysis will work but cylindrical geometry will be a mess as ecotect converts it into triangular components.
9
Cylinder computed by Ecotect becomes more complex triangular geometry Avoid Complex Geometry as far as possible.
10
Carefully deleted the outer cylindrical from imported xml file and created cylinder surface on ecotect so that analysis is done smoothly. More Simplified geometry for Ecotect Model
11
Acoustical Analysis
12
Set Sound Source and Reflectors (ceilings)
13
Generate Rays
14
Reflector position and orientation calculation Acoustical Analysis
15
Trial 1 Default
16
Trial 1 12m dia=30m
17
Trial 1 Default 12m dia=30m
18
Trial 1 Default 12m dia=30m
19
Trial 1 Default dia=30m 12m
20
Conclusion of Trial 1 More REVEB sound was detected. Hence need to modify -Geometry -Orientation (incident angle etc.) Material quality is kept as default. Hence parameters to control in the analysis are Reflectors (ceilings) property.
21
Trial 2 Lowering ceiling Decreased by 3m 9m dia=30m
22
Trial 2 Lowering ceiling Decreased by 3m 9m dia=30m
23
Decreased by 3m Trial 2 Lowering ceiling 9m dia=30m
24
Trial 3 Increased by 3m 15m dia=30m
25
Trial 3 15m dia=30m
26
Conclusion of Trials 2 and 3 As we change the heights of the ceiling, just above the stage, quality changes drastically As we lower more noise is observed As we higher the ceiling good quality is observed for same directed ray generated.
27
Material assignment to the Reflectors at height of 12m Acoustical Analysis
28
Assigning all reflectors as Acoustical Tile.
29
Table to feed different NRC Values
30
Feeding different Absorptive value for different frequency.
31
Adding Material-NRC.03 dia=30m 12m
32
Adding Material-NRC.03 12m dia=30m
33
Adding Material-NRC.61 dia=30m 12m
34
Adding Material-NRC.85 dia=30m 12m
35
Conclusion of different NRC Values For Higher Noise Reduction Coefficients (NRC 0.6 and above) most of the sound waves are observed that leads to Dryness of Sound which seems to be bad of an amphitheatre. For lower NRC(0.3) we have variety of sound variation which is not desired Hence selected NRC 0.56 which is 12 mm Mineral Fiber Material which is also fire resistant.
36
Adding Material-NRC.56 12m dia=30m
37
Adding Material-NRC.56 12m dia=30m
38
Results or Output from Ecotect Analysis. Acoustical Analysis
39
Acoustical Response
40
Sound Decay for different frequency
41
Reverberation Graph TOTAL SABINE NOR-ER MIL-SE FREQ. ABSPT. RT(60) RT(60) RT(60) ------------------------------------ 63Hz: 104.349 3.35 2.80 4.87 125Hz: 110.039 3.21 2.70 1.70 250Hz: 206.346 1.53 1.39 1.13 500Hz: 519.030 0.86 0.68 0.57 1kHz: 579.543 0.80 0.60 0.49 2kHz: 485.506 0.86 0.71 0.62 4kHz: 390.240 1.04 0.90 0.82 8kHz: 390.551 1.02 0.90 0.82 16kHz: 308.554 1.14 1.07 0.99
42
STATISTICAL ACOUSTICS - 18 Room Volume: 4070.390 m3 Surface Area: 761.794 m2 Occupancy: 680 (850 x 80%) Optimum RT (500Hz - Speech): 0.99 s Optimum RT (500Hz - Music): 1.65 s Volume per Seat: 4.789 m3 Minimum (Speech): 5.329 m3 Minimum (Music): 9.129 m3 Most Suitable: Norris-Eyring (Highly absorbant) Selected: Sabine (Uniformly distributed)
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.