mecㆍviewer v1.4 :: RFP_HE_Shaker_Design

KARI PROPRIETARY

Request For Proposal

for

Design of QUAD vertical vibration

system & magnesium expander

September 2014

Space Environment Test Team

Korea Aerospace Research Institute

169-84 Gwahangno, Yuseong-gu, Daejeon, 305-806, KOREA

Phone : 82(42)860-2562, Fax : 82(42)860-2234

KARI PROPRIETARY

Request For Proposal

for

Design of QUAD vertical vibration system &

magnesium expander

IMPORTANT

1. This RFP should be kept in confidentiality and should neither
be copied nor distributed to the third parties.

2. The questions and opinions on this RFP can be asked or
suggested to Korea Aerospace Research Institute before
submission of the proposal.

3. This RFP should be returned to Korea Aerospace Research
Institute with bidder’s proposal.

4. This RFP shall be legal bind after the contract is awarded
unless the bidder explicitly expresses the differences from the
RFP in the compliance sheet.

September 2014

Space Environment Test Team

Korea Aerospace Research Institute

169-84 Gwahangno, Yuseong-gu

DAEJEON, 305-806, KOREA

Phone : 82(42)860-2562, FAX : 82(42)860-2234

e-mail :acoust@kari.re.kr

2014.

Space Environment Test Dept.

Table of Contents

OVERVIEW ................................................................................................................... 2

1. OVERVIEW OF THE PROJECT ......................................................................................... 2

2. PROCEDURES OF THE PROJECT ..................................................................................... 3

3. REQUISITES OF PARTICIPANTS ....................................................................................... 4

4. SCOPE OF THE CONTRACT ............................................................................................ 4

II.

TECHNICAL REQUIREMENTS ................................................................................ 5

1. TOTAL SYSTEM CONFIGURATION ................................................................................... 5

2. REQUIREMENTS FOR SYSTEM DESIGN ............................................................................ 8

3. SCOPE FOR SUPPLIED ITEMS ....................................................................................... 10

III.

FORMAT OF PROPOSAL ....................................................................................... 12

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

I. OVERVIEW

1. Overview of the project

1.1

Korea Aerospace Research Institute (hereinafter referred to as “KARI”) is located

at Daeduk Research Complex, 140 km south of Seoul.

1.2

KARI has a satellite assembly, integration and test center (hereinafter referred to

as “AITC”) for joint use by corporations and research institutes for the purpose of

the effective development of domestic satellites. And basic facilities and

equipment for satellite assembly and test have been supplied, installed and used.

1.3

The purposes of this project are ;

1.3.1 To design the overall vertical shaker system of 4 shakers to expand

load capacity with use of existing shakers and bearing system and

predict the system response

1.3.2 To design the head expander(H/E) of magnesium and produce the

detailed drawings for manufacturing

1.3.3 To design the seismic mass(reaction mass) and produce the detailed

drawings for fabrication

1.3.4 To design the bearing installation and alignment device and produce

the detailed drawings for manufacturing

1.3.5 To design the static compensation system(load support system) and

produce the detailed drawings for manufacturing

1.3.6 To design the interface structure between H/E and shakers and

produce the detailed drawings for manufacturing

1.3.7 To design the pneumatic control cabinet and supply the diagram with

part list of pneumatic control cabinet

1.3.8 To perform the technical supports at KARI site during the

manufacturing the vibration shaker system

1.4

The supplier should submit the agenda of the new vibration shaker system in KARI.

1.5 All the descriptions in this RFP are minimum requirements and the supplier can

suggest the better one to improve the overall performance and cost. But in this

case, the proposal should clearly indicate the improvements from KARI’s

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

requirements.

2. Procedures of the project

2.1

The project shall be proceeded with the parts as follows:

1) Overall system design – Head expander and related shaker interface design

- Head expander dimension: 3.25 m x 3.25 m (can have chopped angles)

- Head expander material : Magnesium

- Mass of the expander: less than 2600kg

- Head expander top grid M12 class 12.9 class insert (with grid 100 x 100 mm)

- Frequency of the vertical mode of the system: higher than 170Hz

at bare table condition

- Maximum overturning moment: 200kNm

with the use of 16 Team 410-XAP pad bearings or 412 type bearings

- Frequency of the suspension of the reaction mass:

≒ 3Hz

- Maximum displacement: +/- 25mm

- Excitation range: sine 5 Hz ~ 2,000Hz, Random 10Hz ~ 2,000Hz

- Rocking mode ≥ 50Hz

- Crosstalk bare table: 5 ~ 150Hz ≤10%, 150 ~ 400Hz ≤100%

- Homogeneity up to 100Hz ≤15%

- Use of 4 Shakers of LDS V984

-H/E and shaker interface (coupling element) design < 280kg(4x 70kg)

2) Detailed drawing for Manufacturing the subsystems

- Detailed drawing for magnesium head expander

- Detailed drawings for H/E and shaker interface (coupling element)

- Detailed drawings for seismic mass(reaction mass)

- Detailed drawings for hydraulic bearings and installation and alignment

devices

- Detailed drawings for static compensation system

- Diagram of the pneumatic control cabinet

3) Technical supports on system manufacturing and acceptance test

2.2

The participants shall submit the detailed work schedule for article 2.1.

2.3

The format of proposal :

1) The participants shall submit 6 copies of a detailed proposal to KARI

according to the format and contents satisfying the requirements stipulated

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

in this RFP.

2) The compliance sheet with the requirement of this RFP shall certainly be

included in the proposal.

3) The participants shall make out a proposal with their own writing.

4) The language shall be English or Korean.

2.4

The proposal shall be delivered to KARI before the due date for submission.

2.5

All proposals and documents submitted shall become the property of KARI.

3. Requisites of participants

3.1

The participants shall supply information about themselves including organization,

financial standing, major business, experience in manufacturing and delivery

performance for five (5) years and technical support.

3.2 The participants shall also have experience of manufacturing, integration,

installation and operation for the 3m x 3m (or larger) vibration system equipped

with electro dynamic shakers of 4, hydraulic bearing system and magnesium head

expander.

4. Scope of the contract

4.1

The proposal shall include the following;

1) Engineering work of overall system

2) Design report and specification on components

3) Detailed drawings and technical support for manufacturing components in

KOREA

4) Project management(Technical supports in site) , cooperation with KARI

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

II. Technical Requirements

1. Total System Configuration

KARI vertical vibration system (Figure 1) is composed of three of vibrators [LDS V984] ,

Ø3m aluminum head expander, hydraulic bearing for overturning moments support and
seismic mass.

Figure 1 Current KARI Vertical Vibration System

To increase the shaker capability and improve the accessibility to test object, new guided

expander system with quad shakers shall be designed and built. The head expander

should be designed with magnesium material for reducing the weight. Seismic mass

should be designed to support dynamic load during the vibration test and also supply the

rigid support and load path for the hydraulic bearings. Quad shakers should be used to

increase the capability. Top level of H/E is designed to same level of facility floor.

Limitations for design the new vertical shaker system are two points;

Use of existing shaker system (LDS V984)

Use of existing hydraulic bearing (

16 Team 410-XAP pad bearings)

Can Use of hydraulic bearing (

16 Team 412-XAP pad bearings)

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

Figure 2 Concept for New Vertical Vibration System

The vertical vibration system consists of:

①

The expander is the interface structure with the payload. It has a surface of 3.25

m x 3.25 m. For weight saving, this structure is preferably made of light material,

like welded magnesium. Its design must be optimized with respect to the following

parameters

•

Low mass and mass inertia

•

High frequency modes

•

High overturning moment capacity

②

Sixteen Team hydraulic bearings are used as they are existing and they are

able to work vertically. It is fitted with M12 inserts (class 12-9) on a grid of 100

mm x 100 mm.

③

The installation and alignment devices. These parts, placed behind each

bearing, are essential for the accurate installation and alignment of the bearings.

They have a mechanism to retract the bearings away from the expander, in order

to lift and remove the expander for maintenance operation. They allow an

accurate re-positioning of the bearings for the expander re-installation.

④

The reaction mass is a big concrete mass. To get the best possible stiffness, the

bearings and bearings installation and alignment devices are directly interfaced

with the reaction mass. The reaction mass is suspended on spring isolators and

visco dampers

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

⑤

The drive bar is the interface part between shakers and the expander. They are

stiff in tension/compression, but have some flexibility in bending to protect the

shakers against excessive lateral displacement

⑥

The resting pads. When the vibration test facility is not in use (no activity,

installation of the payload,…), the expander is resting on the resting pads. When

the facility is in operation (vibrations), the resting pads are lowered in order not to

interfere with the displacement of the expander. The resting pads use pneumatic

actuators. The position status of the resting (upper or lower position) is detected

by position sensors. The information of the position of the resting pads is sent to

the control and command panel.

•

Static compensation system: this systems consists in several air

cushions and air supply. It carries the static weight of the expander and of the

payload.

•

A control and command panel: located in the control room.

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

2. Requirements for system design

2.1 The vertical vibration system shall be able to operate all function of

vibration shaker of KARI (LDS V984), PCU4 phasing unit and 16 Team

410-XAP pad bearings or 412 pad bearings.

Figure 3 Detailed information on hydraulic bearings

2.2 The supplier shall submit the official records, showing that the

designed vibration system shall operate with meeting the technical

requirements.

2.3 Requirements for the overall system



Head expander dimension: 3.25 m x 3.25 m (can have chopped angles)



Head expander material : Magnesium



Mass of the expander: less than 2600kg



Head expander top grid M12 class 12.9 class insert

(with grid 100 x 100 mm)



Frequency of the vertical mode of the system: higher than 170Hz

at bare table condition

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.



Maximum overturning moment: 200kNm with the use of

16 Team 410-XAP pad bearings



Frequency of the suspension of the reaction mass: ≒ 3Hz



Maximum displacement: +/- 25mm



Excitation range: sine 5 Hz ~ 2,000Hz, Random 10Hz ~ 2,000Hz



Rocking

mode

≥

50Hz



Crosstalk bare table: 5 ~ 150Hz ≤10%, 150 ~ 400Hz ≤100%



Homogeneity up to 100Hz ≤15%



Use of 4 Shakers of LDS V984



H/E and shaker interface (coupling element) design < 280kg(4x 70kg)



Maximum payload mass: 10 tons

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

3. Scope for supplied items

3.1 Overall

design



Overall drawings showing the architecture of the vibration shaker system



Design report and Finite Element Model (FE Model shall include HE, Reaction

Mass, Drive Bars, Pad Bearings according to the information provided by KARI.

Shaker and Control system are not included in the FEM)



Specification of the components (i.e. subsystems) of the system

3.2 Head

expander



A design report with qualitative predictions



Overall drawing



Detail drawings for fabrication



Guidelines for going from aluminum welded expander to magnesium welded

expander



Expander LOMC(List of manufacturing and control tasks) and guidelines for

magnesium



Training for Magnesium welding in KOREA (5 days work)

3.3 Interface between H/E & Shaker (Drive bar)

Interface to minimize the horizontal reaction forces that built up at the interface

with armature of shaker



Provide a high axial stiffness(1800Hz) whereas much lower lateral stiffness



Overall drawings of the drive bars



Detailed drawings of the drive bars for manufacturing in KOREA

3.4 Resting

pads



Overall design including a functional specification of the resting pads, the

reference of the pneumatic actuator and the mechanical detailed drawings

3.5 Hydraulic bearings and installation and alignment devices



Detailed drawings for fabrication of installation and alignment devices



Interface drawing of the bearings and of the installation and alignment devices



Instructions for the alignment of the bearings

3.6 Load support system



The deliverables for the overall design



Including the specification of the static compensation system (mass to be

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

carried, stroke) and the process flow diagram,



Detailed mechanical drawings and the reference of the air cushion.

3.7 Reaction

mass



the overall design shall include the specification of the reaction mass and the

reaction loads under the spring units



Detailed design shall include the execution drawings of the civil part of

reaction mass and the detailed drawings of the mechanical parts of the

reaction mass. It shall also include the specification and mechanical drawings

of the device between expander in test and reaction mass in order to maintain

the cleanliness of the test room.



Reaction mass fabrication procedure



The number and position of the spring units and visco dampers shall be

defined in the overall design deliverable



Deliver a specification for the spring units and visco dampers



Seismic dimension are designed less than 7.5m(L) x 7.5m(D)

3.8 Control panel/electrical cabinet



The deliverable for the overall design including comment on the logical

diagram of the vibration system (shakers, amplifiers and shaker control

excluded) prepared by KARI according to the maximum reuse of existing

parts.

3.9 Technical Support at KARI



For inspection of H/E after manufacturing process



Seismic concrete pouring stage [Check the status of mechanical structure]



Alignment of bearing interface during seismic mass fabrication



H/E, shaker & bearing alignment period



Shaker performance testing after installation of all components



5 visits(5 working day basis)

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

III. Format of Proposal

The proposal shall consist of 10 Work Packages (WP).

WP 1 : Bidder's Qualification Document

WP 2 : Overview and Technical Proposal

WP 3 : Warranty Proposal

WP 4 : Training Proposal

WP 5 : Work Schedule Plan

WP 6 : Acceptance Test Plan Proposal

WP 7 : Documentation

WP 8 : Price Proposal

The bidder shall present 6 copies of the proposal. A4 or letter size paper shall be used. The bidder is

requested to strictly follow the following illustrated format (tabular form). This is very important

to compare and evaluate different bidders’ proposal. Consequently, disregard for this rule may end

up with disqualification. Also, well-prepared and well-organized proposal will be highly appreciated

and evaluated. The landscape orientation will be acceptable for tables. The suggested contents in

each WP are minimum requirements and works for reminiscences. Ambiguous expression will act

adversely to the bidder.

Note : The prices which are used in the proposal to calculate the final total and breakdown prices

shall be distinguished from the other prices (e.g. optionally suggested parts by the bidder

or KARI, . . . ) by marking a.p. (applied price) after the prices. In other words, the sum of

a.p. shall be the final total price proposed in the proposal.

(example)

Item Price Unit

Subtotal

Item #1

$ 5,000 a.p.

$ 10,000

Item #2

$ 4,000 a.p.

$ 4,000

Item #3

$ 2,000 a.p.

$ 6,000

: : :

Total

20,000

WP 1 : Bidder's Qualification Document

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

The followings shall be included in this WP.

(a) Bidder's last 5 years experience on the prescribed system (“Vibration Control System and Data

Acquisition and Processing System”) in this "Request for Proposal" including :

(1)

design

(2)

manufacturing

(3) installation (specifications, performance, purchaser, supplied year, and price)

(4) training (operation and maintenance) of the facility for foreign countries

(b) Supporting program to maintain high quality of the equipment

be generated by the ON-SITE Users(can be requested by KARI). The documents include personnel's

information in charge of the facility, address, FAX number and the others from the world well known

satellite testing institutes or companies which are using the facilities installed by the bidder

(d) Other information

Total

Employees

- Total number of Employees (Engineer / Technician)

- Number of Employees for the directly related area

2. Plant Scale

- Total area of space

- Factory & Building area

3. General brochure

4. Any documents with which the bidder can show his/her financial and technical abilities

(e.g. technical awards, bank balance, etc.)

WP 2 : Overview and Technical Proposal

Concise and clear expression is required. A long sentence should be broken down into several

sentences. Detailed block diagrams, figures and photos are recommended for clear illustration.

The bidder should prepare tables for the check list to show the bidder's compliance with the "Request

for Proposal". The bidder’s compliance list shall be legal bind. This table shall be located in the

front of Overview part. The article numbers in the "Part I. Overview" and "Part II. Technical

Requirements" in the RFP should be completely enumerated in the table. The table format to be

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

followed is as follows:

Check List for "Part I. OVERVIEW", "Part II. TECHNICAL REQUIREMENTS", “Part Ⅲ.

Warranty, Maintenance and other Requirement” and “Part Ⅳ Terms and

Conditions”(COMPLIANCE LIST)

ANR

: Article Number in the Part I and Part II in the RFP

Y/N

: Compliance (Yes or No)

CAP

: Corresponding Article number in the bidder's Proposal to ANR

AAM

: Article number of Added Material in the bidder's proposal which is not mentioned in this

RFP

(Exemple)

ANR Y/N

CAP Remark

AAM

Remark

I-1. yes

I-1.1

Ditto

I-2. yes

I-2.1.1

Ditto

I-2.1. yes

I-2.1.2.

Ditto

…... ……

……

II-1. yes

II-1.1

Ditto

II-2. yes

II-2.1.2.

Ditto

II-2.1. yes II-2.1.3.

Ditto

II-2.1.1.

yes

II-2.1.5. The specifications look old.

We updated them

N/A

II-2.1.4.

We currently developed a
new method.

II-2.1.2. yes II-2.2.1.

Ditto

II-2.1.3.

II-2.2.2.

The resolution is high above
the necessity.
The current technology for
the system .............
.……...

II-2.1.4. yes II-2.3.1.

Ditto

II-2.1.5. yes II-2.3.2.

Ditto

II-2.2.

II-2.3.3.

This specification is not
Compatible with II-2.2.2 in
the Proposal. We suggest
other Approach.

II-2.2.1. yes II-2.3.4.

Ditto

II-2.2.2. no II-2.3.5.

Ditto

WP 3 : Warranty Proposal

3.1. Baseline warranty (2 years)

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Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

- plan for the prompt repair

WP 4 : Training Proposal

4.1. The training program

- contents, location, period, etc.

WP 5 : Work Schedule

The work schedule shall be shown as in detail as possible in chronological way. The installation plan

shall be detailed enough to figure out daily progress and include the methods and procedures for

interface between the equipment and KARI S.I.T.C.(Satellite Integration and Test Center) building

(air condition, electricity, treated water, compressed air, etc.). It shall also include visits of KARI

AITC site.

- chronological table for work schedule

WP 6 : Acceptance Test Plan Proposal

6.1. General description

6.2. Acceptance test

- schedule

- test list and procedure

6.3. Back-up plan

For the case that the bidder cannot meet the requirements or other contractual binds after the

contract is awarded, the bidder shall proposed the back-up plan.

detailed plan and schedule

WP 7 : Documentation

9.1. Documentation

- document list (contents, number of page and figure) to be delivered

2014.

Design of QUAD vertical vibration system & magnesium expander

Space Environment Test Dept.

WP 8 : Price Proposal

8.1.Total system price :

All the Price Proposal shall be separately submitted being sealed.

Note :

The prices which are used in the proposal to calculate the final total and break-down prices shall be

distinguished from the other prices (e.g. optionally suggested parts by the bidder or KARI, . . . ) by

marking a.p.(applied price) after the prices. In other words, the sum of a.p. shall be the final total

price proposed in the proposal.

The total price is the sum of the break down prices hereafter.

APPENDIX

1. General

Terms

and

Conditions