Download presentation

Presentation is loading. Please wait.

Published byXimena Bradberry Modified over 3 years ago

1
NAGASAKI UNIVERSITY Matsuda laboratory THREE-DIMENSIONAL PHOTOGRAMMETRY AND THE APPLICATION TO SEISMIC RESPONSE ANALYSIS Masaki HONGO Hiroshi MATSUDA 3rd Joint Seminar in Shanghai October 21

2
NAGASAKI UNIVERSITY Matsuda laboratory INTRODUCTION Blast Furnace, Chimney (end of 19 th ~beginning of 20 th ) Industrial Heritages reproduction, preservation 3D digital image

3
NAGASAKI UNIVERSITY Matsuda laboratory INTRODUCTION Blast Furnace, Chimney (end of 19 th ~beginning of 20 th ) Industrial Heritages reproduction, preservation 3D digital image Finite element analysis

4
NAGASAKI UNIVERSITY Matsuda laboratory INTRODUCTION Blast Furnace, Chimney (end of 19 th ~beginning of 20 th ) Industrial Heritages reproduction, preservation 3D digital image Finite element analysis

5
NAGASAKI UNIVERSITY Matsuda laboratory INTRODUCTION Take a much time and labor Mesh generation Optical Measurement Technique Industrial Heritages no design drawing complicated shape deformed shape

6
NAGASAKI UNIVERSITY Matsuda laboratory INTRODUCTION Optical Measurement Technique Laser scanner Bad point Good point High precision Used mainly Too expensive Operation is complicated

7
NAGASAKI UNIVERSITY Matsuda laboratory INTRODUCTION Optical Measurement Technique Laser scannerPhotogrametry Bad point Good point High precision Used mainly Too expensive Operation is complicated Low-priced Operation is simple

8
NAGASAKI UNIVERSITY Matsuda laboratory PURPOSE Examination of the validityand usefulness of the 3D measuring method using a digital camera and 3D photogrametry Development of an automatic mesh generation system Earthquake-proof evaluation by seismic response FE analysis

9
NAGASAKI UNIVERSITY Matsuda laboratory MEASUREMENT THEORY Looking is different by a photography direction CAMERA B CAMERA A x y z PICTURE APICTURE B x y z x y z The same points

10
NAGASAKI UNIVERSITY Matsuda laboratory PERFORMANCE COLLATION

11
NAGASAKI UNIVERSITY Matsuda laboratory NATURAL FREQUNCY

12
NAGASAKI UNIVERSITY Matsuda laboratory VIBRATIONAL MODE Holography Photogrametry Laser Mode 6 Mode 5 Mode 4Mode 1 Mode 2Mode 3

13
NAGASAKI UNIVERSITY Matsuda laboratory PHOTOGRAMETRY One Leg Torii in Sano Temple

14
NAGASAKI UNIVERSITY Matsuda laboratory Exploratory experiment (c) shape data(a) point group data (b) wire frame data

15
NAGASAKI UNIVERSITY Matsuda laboratory 3D GEOMETRY MODEL shape datasolid data make inside

16
NAGASAKI UNIVERSITY Matsuda laboratory ANALYSIS RESULT (a)crack distribution(b)strain of x (c)equivalent stress distribution

17
NAGASAKI UNIVERSITY Matsuda laboratory NAGASAKI PEACE PRAYING STATUE

18
NAGASAKI UNIVERSITY Matsuda laboratory LASER MEASUREMENT Direction G Direction H Direction A Direction B Direction C Direction D Direction E Direction F Measurement direction Direction F

19
NAGASAKI UNIVERSITY Matsuda laboratory PHOTOGRAMETORY Direction 1 Direction 4 Direction 3 Direction 2 Measurement direction direction 1

20
NAGASAKI UNIVERSITY Matsuda laboratory 3D GEOMETRY MODEL (c) shape data(a) point group data (b) wire frame data Laser measurement (element:610415) photogrametry (element:18176)

21
NAGASAKI UNIVERSITY Matsuda laboratory VIBURATION MODE Mode 1 Mode 4 Mode 2 Mode 3

22
NAGASAKI UNIVERSITY Matsuda laboratory NATURAL FREQUENCY Natural Frequency Comparison of laser and camera

23
NAGASAKI UNIVERSITY Matsuda laboratory REINFORCEMENT FE model Inside view Elevation view

24
NAGASAKI UNIVERSITY Matsuda laboratory REINFORCEMENT Excellence mode is 1 st and 2 nd mode Mode 1 Mode 2 0.39(s) 0.18(s) 0.26(s) 0.17(s) reinforce natural period changed

25
NAGASAKI UNIVERSITY Matsuda laboratory REINFORCEMENT Response acceleration becomes small earthquake resistance improves Excellence mode is 1 st and 2 nd mode Mode 1 Mode 2 0.39(s) 0.18(s) 0.26(s) 0.17(s) reinforce natural period changed

26
NAGASAKI UNIVERSITY Matsuda laboratory RC CHIMNEY Detail beam element 3D element K H =7.1×10 5 (t/m) K θ =1.83×10 8 (t m/rad) Model of SOFiSTiK Model of MARC

27
NAGASAKI UNIVERSITY Matsuda laboratory NATURAL FREQUENCY (Hz)

28
NAGASAKI UNIVERSITY Matsuda laboratory MODE OF OSCILLATION MARC beam element mode1mode2 3D element mode1 mode2 SOFiSTiK mode1mode2 3D element mode1mode2 beam element

29
NAGASAKI UNIVERSITY Matsuda laboratory FE MODEL 0 50 100 150 200 250 05101520 25 Acceleration (m/sec2) Height (m) 0 50 100 150 200 250 0200400600800 Height (m) Chimney structure code MARC-beam MARC-shell SOFiSTiK-beam SOFiSTiK-shell Maximum acceleration and maximum displacement Displacement (mm)

30
NAGASAKI UNIVERSITY Matsuda laboratory SUMMARY 1.FE mesh generation system was able to create to using 3D photogrametry 2.The results of natural frequency analysis using the data obtained by laser measurement and photogrametry ware in agreement with each other 3.the earthquake-proof improvement by reinforcement has been checked by investigating the natural period of vibration before and after reinforcement of a peace praying statue 4.the results of the natural frequency analysis and elastic seismic response analysis of RC chimney by different analysis software and different modeling were mostly in agreement

Similar presentations

Presentation is loading. Please wait....

OK

Coherent and Electro-Optics Research Group (CEORG)

Coherent and Electro-Optics Research Group (CEORG)

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on web browser security Ppt on wind energy Ppt on division for class 5 Ppt on river pollution in hindi Ppt on particle size distribution curve Ppt on preservation of public property record Ppt on obesity management matrix Ppt on data collection methods observation Ppt on power purchase agreement Ppt on ms access 2003