Active trim panel attachments for control of sound transmission through aircraft structures:
Saved in:
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Düsseldorf
VDI-Verl.
2007
|
| Edition: | Als Ms. gedr. |
| Series: | Fortschritt-Berichte VDI
Reihe 11, Schwingungstechnik, Lärmbekämpfung ; 333 |
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Item Description: | Zugl.: München, Techn. Univ., Diss. |
| Physical Description: | XIII, 191 S. Ill., graph. Darst. |
| ISBN: | 9783183333110 |
Staff View
MARC
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| 100 | 1 | |a Tewes, Stephan |d 1974- |e Verfasser |0 (DE-588)132503840 |4 aut | |
| 245 | 1 | 0 | |a Active trim panel attachments for control of sound transmission through aircraft structures |c Stephan Tewes |
| 250 | |a Als Ms. gedr. | ||
| 264 | 1 | |a Düsseldorf |b VDI-Verl. |c 2007 | |
| 300 | |a XIII, 191 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Fortschritt-Berichte VDI : Reihe 11, Schwingungstechnik, Lärmbekämpfung |v 333 | |
| 500 | |a Zugl.: München, Techn. Univ., Diss. | ||
| 650 | 4 | |a Airplanes |x Design and construction | |
| 650 | 4 | |a Airplanes |x Noise | |
| 650 | 4 | |a Noise control | |
| 650 | 0 | 7 | |a Aufhängung |0 (DE-588)4240216-5 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Flugzeugkabine |0 (DE-588)4154784-6 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Verkleidung |g Technik |0 (DE-588)4409431-0 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Fluglärm |0 (DE-588)4154757-3 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Aktive Schalldämpfung |0 (DE-588)4451322-7 |2 gnd |9 rswk-swf |
| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
| 689 | 0 | 0 | |a Fluglärm |0 (DE-588)4154757-3 |D s |
| 689 | 0 | 1 | |a Flugzeugkabine |0 (DE-588)4154784-6 |D s |
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Record in the Search Index
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|---|---|
| adam_text |
Contents
Nomenclature ix
Abstract xiii
1 Introduction 1
1.1 State of the Art 1
1.2 Objectives of the Thesis 3
1.3 Organisation of the Thesis 4
2 Scientific Background 5
2.1 Structural Sound Transmission 5
2.1.1 Sound Propagation in Fluids G
2.1.2 Bending Waves in Thin Plates 7
2.1.3 Sound Transmission through Infinite Single Wall Partitions 8
2.1.4 Sound Transmission through Infinite Double Wall Partitions 12
2.2 Aircraft Interior Noise 18
2.2.1 Noise Souroes 18
2.2.2 Sound Transmission 20
2.2.3 Noise Control 22
2.3 Piezoelectricity 23
2.3.1 Thunder Actuators 31
2.4 Active Control Technologies 33
2.4.1 Active Noise and Vibration Control 35
2.4.2 Active Structural Acoustic Control 3G
2.4.3 Control Schemes 42
2.5 Conclusions 43
3 Numerical Simulation Model 44
3.1 Modelling of Structural Sound Transmission 45
3.1.1 Structural Model 46
3.1.2 Structural Excitation 50
3.1.3 Sound Radiation 52
3.2 Modelling of Piezoelectric Actuators 55
3.3 Control Loop Simulation 60
3.4 Validation of the Simulation Procedure 63
3.5 Conclusions 72
v
Contents _
4 Numerical Study of Active Double Wall Structures 73
4.1 Structuial Model 73
4.2 Actuator and Sensor Concepts 76
4.2.1 Active Fuselage Skin Damping 76
4.2.2 Active Trim Panel Damping 78
4.2.3 Active Attachment Elements 78
4.3 Simulation Results 81
4.3.1 Preliminary Investigation 81
4.3.2 Active Fuselage Skin Damping 83
4.3.3 Active TYim Panel Damping 86
4.3.4 Active Trim Panel Attachments 88
4.4 Analysis and Comparison 95
4.5 Conclusions 99
5 Experimental Study 101
5.1 Design of a Prototype Active Attachment Element 101
5.2 Test Setup and Experimental Methods 1°6
5.2.1 Test Structure Description 106
5.2.2 Transmission Loss Test Facility 1°8
5.2.3 Sound Intensity Measurement 109
5.2.4 Acoustic Excitation H2
5.2.5 Point Force Excitation 113
5.2.6 Measurement Implementation 1"
5.2.7 Measurement Repeatability 11°
5.3 Control Loop Implementation 116
5.3.1 Adaptive Digital Filters H8
5.3.2 Filtered X LMS Algorithm 121
5.3.3 Multichannel Narrowband Filtered X LMS Algorithm l22
5.3.4 Multichannel Broadband Filtered X LMS Algorithm 123
5.4 Experimental Results 125
5.4.1 Test. Configuration l27
5.4.2 Results with Acoustic Excitation 127
5.4.3 Results with Point Force Excitation I35
5.4.4 Results with Artificial Buzz Saw Noise Excitation 137
5.5 Comparison with Numerical Results 139
5.6 Conclusions 141
6 Summary and Recommendations 143
A Modelling of Piezoelectric Actuators 147
A.l Mechanical Behaviour of Laminate Plates with Active Elements I47
A.2 Actuator Force Models I49
B Technical Drawings I52
vi
I
i
C Experimental Investigation 154
C.l Test Structure 154
C.l.l Material Parameters Fuselage Panel 154
C.1.2 Material Parameters Trim Panel 155
C.2 Additional Results 156
Bibliography 182
vii |
| adam_txt |
Contents
Nomenclature ix
Abstract xiii
1 Introduction 1
1.1 State of the Art 1
1.2 Objectives of the Thesis 3
1.3 Organisation of the Thesis 4
2 Scientific Background 5
2.1 Structural Sound Transmission 5
2.1.1 Sound Propagation in Fluids G
2.1.2 Bending Waves in Thin Plates 7
2.1.3 Sound Transmission through Infinite Single Wall Partitions 8
2.1.4 Sound Transmission through Infinite Double Wall Partitions 12
2.2 Aircraft Interior Noise 18
2.2.1 Noise Souroes 18
2.2.2 Sound Transmission 20
2.2.3 Noise Control 22
2.3 Piezoelectricity 23
2.3.1 Thunder Actuators 31
2.4 Active Control Technologies 33
2.4.1 Active Noise and Vibration Control 35
2.4.2 Active Structural Acoustic Control 3G
2.4.3 Control Schemes 42
2.5 Conclusions 43
3 Numerical Simulation Model 44
3.1 Modelling of Structural Sound Transmission 45
3.1.1 Structural Model 46
3.1.2 Structural Excitation 50
3.1.3 Sound Radiation 52
3.2 Modelling of Piezoelectric Actuators 55
3.3 Control Loop Simulation 60
3.4 Validation of the Simulation Procedure 63
3.5 Conclusions 72
v
Contents _
4 Numerical Study of Active Double Wall Structures 73
4.1 Structuial Model 73
4.2 Actuator and Sensor Concepts 76
4.2.1 Active Fuselage Skin Damping 76
4.2.2 Active Trim Panel Damping 78
4.2.3 Active Attachment Elements 78
4.3 Simulation Results 81
4.3.1 Preliminary Investigation 81
4.3.2 Active Fuselage Skin Damping 83
4.3.3 Active TYim Panel Damping 86
4.3.4 Active Trim Panel Attachments 88
4.4 Analysis and Comparison 95
4.5 Conclusions 99
5 Experimental Study 101
5.1 Design of a Prototype Active Attachment Element 101
5.2 Test Setup and Experimental Methods 1°6
5.2.1 Test Structure Description 106
5.2.2 Transmission Loss Test Facility 1°8
5.2.3 Sound Intensity Measurement 109
5.2.4 Acoustic Excitation H2
5.2.5 Point Force Excitation 113
5.2.6 Measurement Implementation 1"
5.2.7 Measurement Repeatability 11°
5.3 Control Loop Implementation 116
5.3.1 Adaptive Digital Filters H8
5.3.2 Filtered X LMS Algorithm 121
5.3.3 Multichannel Narrowband Filtered X LMS Algorithm l22
5.3.4 Multichannel Broadband Filtered X LMS Algorithm 123
5.4 Experimental Results 125
5.4.1 Test. Configuration l27
5.4.2 Results with Acoustic Excitation 127
5.4.3 Results with Point Force Excitation I35
5.4.4 Results with Artificial Buzz Saw Noise Excitation 137
5.5 Comparison with Numerical Results 139
5.6 Conclusions 141
6 Summary and Recommendations 143
A Modelling of Piezoelectric Actuators 147
A.l Mechanical Behaviour of Laminate Plates with Active Elements I47
A.2 Actuator Force Models I49
B Technical Drawings I52
vi
I
i
C Experimental Investigation 154
C.l Test Structure 154
C.l.l Material Parameters Fuselage Panel 154
C.1.2 Material Parameters Trim Panel 155
C.2 Additional Results 156
Bibliography 182
vii |
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| author | Tewes, Stephan 1974- |
| author_GND | (DE-588)132503840 |
| author_facet | Tewes, Stephan 1974- |
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| classification_rvk | AR 24300 |
| classification_tum | VER 639d |
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| dewey-full | 629.1323 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 629 - Other branches of engineering |
| dewey-raw | 629.1323 |
| dewey-search | 629.1323 |
| dewey-sort | 3629.1323 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Allgemeines Verkehrstechnik Verkehr / Transport |
| discipline_str_mv | Allgemeines Verkehrstechnik Verkehr / Transport |
| edition | Als Ms. gedr. |
| format | Book |
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| genre | (DE-588)4113937-9 Hochschulschrift gnd-content |
| genre_facet | Hochschulschrift |
| id | DE-604.BV022265865 |
| illustrated | Illustrated |
| index_date | 2024-07-02T16:44:21Z |
| indexdate | 2024-08-03T00:35:19Z |
| institution | BVB |
| isbn | 9783183333110 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-015476437 |
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| physical | XIII, 191 S. Ill., graph. Darst. |
| publishDate | 2007 |
| publishDateSearch | 2007 |
| publishDateSort | 2007 |
| publisher | VDI-Verl. |
| record_format | marc |
| series | Fortschritt-Berichte VDI |
| series2 | Fortschritt-Berichte VDI : Reihe 11, Schwingungstechnik, Lärmbekämpfung |
| spelling | Tewes, Stephan 1974- Verfasser (DE-588)132503840 aut Active trim panel attachments for control of sound transmission through aircraft structures Stephan Tewes Als Ms. gedr. Düsseldorf VDI-Verl. 2007 XIII, 191 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Fortschritt-Berichte VDI : Reihe 11, Schwingungstechnik, Lärmbekämpfung 333 Zugl.: München, Techn. Univ., Diss. Airplanes Design and construction Airplanes Noise Noise control Aufhängung (DE-588)4240216-5 gnd rswk-swf Flugzeugkabine (DE-588)4154784-6 gnd rswk-swf Verkleidung Technik (DE-588)4409431-0 gnd rswk-swf Fluglärm (DE-588)4154757-3 gnd rswk-swf Aktive Schalldämpfung (DE-588)4451322-7 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Fluglärm (DE-588)4154757-3 s Flugzeugkabine (DE-588)4154784-6 s Aktive Schalldämpfung (DE-588)4451322-7 s Verkleidung Technik (DE-588)4409431-0 s Aufhängung (DE-588)4240216-5 s DE-604 Fortschritt-Berichte VDI Reihe 11, Schwingungstechnik, Lärmbekämpfung ; 333 (DE-604)BV000018182 333 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=015476437&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Tewes, Stephan 1974- Active trim panel attachments for control of sound transmission through aircraft structures Fortschritt-Berichte VDI Airplanes Design and construction Airplanes Noise Noise control Aufhängung (DE-588)4240216-5 gnd Flugzeugkabine (DE-588)4154784-6 gnd Verkleidung Technik (DE-588)4409431-0 gnd Fluglärm (DE-588)4154757-3 gnd Aktive Schalldämpfung (DE-588)4451322-7 gnd |
| subject_GND | (DE-588)4240216-5 (DE-588)4154784-6 (DE-588)4409431-0 (DE-588)4154757-3 (DE-588)4451322-7 (DE-588)4113937-9 |
| title | Active trim panel attachments for control of sound transmission through aircraft structures |
| title_auth | Active trim panel attachments for control of sound transmission through aircraft structures |
| title_exact_search | Active trim panel attachments for control of sound transmission through aircraft structures |
| title_exact_search_txtP | Active trim panel attachments for control of sound transmission through aircraft structures |
| title_full | Active trim panel attachments for control of sound transmission through aircraft structures Stephan Tewes |
| title_fullStr | Active trim panel attachments for control of sound transmission through aircraft structures Stephan Tewes |
| title_full_unstemmed | Active trim panel attachments for control of sound transmission through aircraft structures Stephan Tewes |
| title_short | Active trim panel attachments for control of sound transmission through aircraft structures |
| title_sort | active trim panel attachments for control of sound transmission through aircraft structures |
| topic | Airplanes Design and construction Airplanes Noise Noise control Aufhängung (DE-588)4240216-5 gnd Flugzeugkabine (DE-588)4154784-6 gnd Verkleidung Technik (DE-588)4409431-0 gnd Fluglärm (DE-588)4154757-3 gnd Aktive Schalldämpfung (DE-588)4451322-7 gnd |
| topic_facet | Airplanes Design and construction Airplanes Noise Noise control Aufhängung Flugzeugkabine Verkleidung Technik Fluglärm Aktive Schalldämpfung Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=015476437&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV000018182 |
| work_keys_str_mv | AT tewesstephan activetrimpanelattachmentsforcontrolofsoundtransmissionthroughaircraftstructures |