CONSERT - Antenna

on Rosetta S/C

 

 

 

 

 

 

 

 

 

 

 

Project Deployment Test Report

of the

Consert S/C-Antenna STM

after Vibration

 

 

 

 

RO-OCN-TR-3003.1

Issue: 1

Revision: -

01.08.1999

 

Prepared by:

W. Engelhardt and E.Nielsen / W.Boogaerts

 

 

 

Approval Sheet

 

 

 

 

prepared by: E.Nielsen / W.Boogaerts (signature/date)

 

 

 

approved by technical department: W.Engelhardt (signature/date)

 

 

 

approved by Consert-Management: Dr. E.Nielsen (signature/date)

 

 

 

approved by QA/PA : W.Boogaerts (signature/ date)

 

 

 

 

 

 

Document Change Record

 

Iss./Rev.

Date

Pages affected

Description

1/-

01.08.1999

All

Deployment after Vibration
       

 

Distribution Record

 

Holder

Issue/Revision
 

Draft

1/-

1a

2

            

Consert-Documentation

MPAE

C

                  
                 
                       
                       

WB

W.Boogaerts

A/C

                  

LB

L.Bemman

C

                  

EN

Dr. Nielsen

A/C

                  
 

Prof. Hagfors

                    

HP

H.Perplies

A/C

                  

KG

K.Gräbig

                    

WE

W.Engelhardt

A/C

                  
                       
                       
                       
                       
                       
                       

ESA

G. Gianfiglio

C

                  
                       
 

J-P. Goutail

A/C

                  
                       
                       
                       
                       
                       

Legend:

A - Approval
C - Copy
U - Updated Pages

                    

 

 

Table of contents

 

 

1.0 General aspects *

1.1 Scope *

1.2 Introduction *

1.3 Applicable Documents *

1.4 Reference Documents *

1.5 Acronyms *

2.0 Equipment under Test *

3.0 Test Conditions *

4.0 Ground Support Equipment (MGSE) *

5.0 Test Steps *

5.1 Preparations *

5.2 Deployment *

6.0 Non-Conformance (NCR) *

7.0 Procedure Sign Off Sheet *

8.0 Signatures *

9.0 Attachments *

 

 

 

 

List of Figures

 

Fig. 1 Antenna folded on Attachement Plate *

Fig. 2 The folded antenna with the major parts named *

Fig. 3 Antenna deployed *

 

 

List of Tables

 

Table 1 Tests Overview *

Table 2: Applicable Documents < A HREF="#_Toc456769151">*

Table 3: Reference Documents < A HREF="#_Toc456769152">*

Table 4 Ground Support Equipment *

Table 5: Open Items *

Table 6 Signatures *

Table 7 Attachments *

 

 

1.0 General aspects

    1. Scope

      2.  

      This Testprocedure covers Project :

      Consert-Antenna (STM)

       

      Fig. 1 Antenna folded on Attachement Plate

       

       

       

    2. Introduction

 

The test carried out according to this procedure shall demonstrate the deployment functionality of the Consert-Antenna after the following test :

 

Table 1 Tests Overview

Test

Doc. Nr.

Description

Remarks

Vibration

RO-OCN-TR-3004

Vibration except Centrifuge Test

  

 

 

      1. Definition correct Deployment

A correct deployment means that the deployment indicators show the correct signal prior to deployment (signaling a stowed antenna), that the antenna deployment takes place in an orderly and defined sequence, that the locking mechanisms are latching-on at the end of the deployment, and that the electrical deployment indicators are showing the correct signal at the end of the deployment (signaling a deployed antenna).

For general background on handling of the orbiter antenna and on terminology consult RO-OCN-TN-3019, version 1.2.

Correct deployment is defined as:

1) There are two deployment indicators; one on each Carpenter-Spring. The indicators are connected to connector JA4 on Support 1.

The deployment indicator on Carpenter-Spring-1 is connected to Pins 2 and 7.

The deployment indicator on Carpenter-Spring-2 is connected to Pins 4 and 9.< /P>

For stowed antenna: Deployment indicator value is an Ohmic resistance of < 50 Ohm.

For deployed antenna: Deployment indicator value is an Ohmic resistance of > 1MOhm.

2) The sequence of deployment is:

 

  1. After the deployment is completed check that the Manchet-1 and Manchet-2 have latched-on.

 

 

 

The test will be performed with MPAE - Equipment by MPAe personnel.

The test progress will be documented by pictures and Video Recording.

 

 

    1. Applicable Documents

Table 2: Applicable Documents

No.

Document Name

Document Number

Iss./Rev.

AD1

Consert Orbiter Antenna

Mechanical I/F

RO-OCN-DW-3001

Pages 1-3

2/E

 

AD2

general background on handling of the orbiter antenna and on terminology consult

RO-OCN-TN-3019

Version 1.3

1.4 Reference Documents

Table 3: Reference Documents

No.

Document Name

Document Number

Iss./Rev.

RD1

EIDA

RO-EST-RS-3001

 

1/1

RD2

EIDB

RO-EST-RS-3001

1/0

RD3

EIDC

RO-EST-RS-3001

  
       
       

 

 

 

1.5 Acronyms

 

MPAe Max-Planck-Institut für Aeronomie

STM Structural and Thermal Model

AD Applicable Documents

RD Reference Documents

FM Flight Model

 

 

 

 

2.0 Equipment under Test

 

The Structural and Thermal Model (STM) of the Consert Antenna is mass and thermal representative of the Consert Antenna (FM). The size of the Antenna is 1135 mm x 100 mm x 125 mm. The Antenna weight is 1.45 kg.

 

3.0 Test Conditions

Cleanliness: 100 000

Temperature: 20 ° C

Humidity: < 50 %

 

4.0 Ground Support Equipment (MGSE)

Table 4 Ground Support Equipment

Nr.

Instr. / Equipment

Description

Manufacturer

Identification-Nr.

Model/Type-Nr.

Inv. Nr.

Remarks

1

Deployment Bracket

MPAE

OCN-MGSE-01

    

See AD2

2

Holding Bracket A

MPAE

OCN-MGSE-02

      

3

Holding Bracket B

MPAE

OCN-MGSE-03

      

4

Balloons

  

OCN-MGSE-04

      

5

Counter Weight

MPAE

OCN-MGSE-05

      

6

String Attachement

MPAE

OCN-MGSE-06

      

7

Multimeter

  

OCN-MGSE-07

      

8

4 Pieces of String,

about 4 m. each

MPAE

OCN-MGSE-08

      

9

Helium Bottle Attachement

MPAE

OCN-MGSE-09

      

10

Wire-Cutter

MPAE

OCN-MGSE-10

      

11

Bottle with Helium

Provided by Integrator

        
             
             

 

 

Fig. 2 The folded antenna with the major parts named

 

 

 

 

    1. Test Steps
    2. Preparations

 

Location : MPAe

 

Step

Picture-Nr. /

Video

Activity

Executed by [Initials]

OK

Y/N

Comments

10

  

Place Antenna Horizontally

> 1m over Ground

WE

Y

  

20

  

Assemble and prepare the ‘Deployment Bracket’

WE

Y

  

30

  

Attach ‘Deployment Bracket’ to the crane hook

WE

Y

  

40

  

Position crane hook over Support-1

WE

Y

  

50

  

Attach the string through the ‘Deployment Bracket’ to Support-1

WE

Y

  

60

 

Position crane hook exactly to make sure that the vertical part of the ‘Deployment Bracket’ is vertical

WE

Y

  

70

 

Mount the ‘String Attachment’ and connect the ‘Deployment Bracket’

WE

Y

  

80

  

Fill balloon(s) with helium so that they balance the ‘Counter Weight’

WE

Y

  

90

Fasten the balloon(s) to the top of Mast-2

WE

Y

Step

Picture-Nr. /

Video

Activity

Executed by [Initials]

OK

Y/N

Comments

100

  

Remove Pyro :

  • Remove the 2 Holding Screws holding the Pyro
  • Remove the pyro

WE

Y

  

110

  

Antenna is ready to be deployed?

      

 

 

    1. Deployment

 

Step

Picture-Nr. /

Video

Activity

Executed by [Initials]

OK

Y/N

Comments

200

  

Check Deploment Indicators:

JA4: R < 50W

Carpenter Spring 1

(JA4, PIN 2,7)

Carpenter Spring 2

(JA4, PIN 4,9)

WE

Y

  

210

  

Cut the Pyro Wire with the Wire-Cutter at the point where the Pyro would have cut

WE

Y

  

220

  

Watch deployment sequence as the Antenna deploys :

  • Release of Mast-1
  • Release of Mast-2
  • Release of Reflectors
  • Release of Dipols

 

WE

 

 

Y

Y

N

Y

 

 

 

 

!

Step

Picture-Nr. /

Video

Activity

Executed by [Initials]

OK

Y/N

Comments

230

  

Verify that Manchets are locked on :

  • at Carpenter Spring 1
  • at Carpenter Spring 2

WE

Y

  

240

  

Check the Deployment-Indicators :

(on JA4 . R > 1 MW )

  • Carpenter-Spring 1

(JA4, PIN 2,7)
  • Carpenter-Spring 2

(JA4, PIN 4,9)

WE

Y

  
           
           
           

 

 

 

 

Fig. 3 Antenna deployed

6.0 Non-Conformance (NCR)

 

Where any out of limits results is obtained during the test , the result shall be annotated clearly as being a test failure and the Non-Conformance-Reporting according to EID A

Issue 1 , Rev. 0 Sec.: 3.3.8 and Section 8.33.1 will be initiated.

A NCR Formsheet RO-OCN-MPAE-FO-007.doc is attached.

A summery of all out of limits results (NCR-Overview) should be appended to the test report.

A NCR-Overview Formsheet RO-OCN-MPAE-FO-007_ov.doc is attached.

See items # 21 and 22 of ADP: RO-OCN-MPAE-NCR-002.

 

 

7.0 Procedure Sign Off Sheet

 

The identified test item has been successfully tested in accordance with the foregoing procedure and all open items (e.g. NCR's) are closed except those listed below:

 

Table 5: Open Items

 

 

 

 

 

 

 

 

 

 

 

 

 

8.0 Signatures

Table 6 Signatures

 

 

 

 

 

 

 

9.0 Attachments

Table 7 Attachments

No.

Doc.Nr.

Title

Version

Date

Remarks

1

RO-OCN-MPAE-NCR-002