66 -- HAND-ARM 3D VIBRATION CONTROL SYSTEM

Notice Date

December 26, 2000

Contracting Office

DHHS, PHS, CDC, NIOSH, ALOSH, 1095 Willowdale Rd., Morgantown, WV 26505-2888

ZIP Code

26505-2888

Solicitation Number

2001-Q-04015, Amendment 001

Response Due

January 9, 2001

Point of Contact

Brenda Goodwin, 304/285-5882; Contracting Officer, Rex S. Wolfe, Jr., 304/285-5883

Description

This notice is issued as Amendment 001 to Solicitation 2001-Q004015 issued on December 5, 2000 (SNO 508120). This amendment provides answers to questions asked regarding the requirement. As a result of these questions, the due date for receipt of proposals is extended to January 9, 2001. 1) What is meant by synchronized Control? Does this mean closed-loop control or simply that the shakers have to move in a prescribed pattern? ANSWER: This means the vibration in the three perpendicular axes must be controlled simultaneously as prescribed vibration pattern. 2) Is the integration of smart transducers important? ANSWER: Not essential. Most likely, we will use a miniature tri-axial transducer to provide the control signals. We will consider it if the suggestion would fit our application. 3) Is there a hardware preference? ANSWER: As long as the system will work fast enough to meet the frequency and accuracy requirements. (5 to 2,000 Hz is the minimum range of vibration to be controlled on each channel. 5 to 5,000 Hz is desired. It is also desired that the system sampling rate should be 10 time faster than the high end frequency). 4) Is a "system modeling process" that allows accurate measurement and calculation of multiple input multiple output systems important? Accurate models significantly reduce iteration time, improve the replication results and reduce the damage accumulated during the iteration process. Yes. This is desired. 5) Is it important to be able to identify and visualize ill-defined degrees of freedom in the system and allow removal of them as desired ("degree-of-freedom filter")? ANSWER: Yes. This is desired. 6) Is the abililty to develop an over-determined system desired? This technique can be used to "fill-in" missing degrees of freedom identified by the degree-of-freedom filter and offers a weighted least squares fit to all measured response points. ANSWER: Yes. This is also desired. 7) After the proposals are submitted what is the time frame for making a decision? ANSWER: Processing time depends partly on the number of proposals received. The Government expects to select the control system in a timely manner since a second solicitation for the mechanical system to be used in conjunction with this action remains to be issued. 8) Are there technical discussions or demonstrations after the submitted proposal? ANSWER: FAR Part 12 indicates that generally award can be made without discussions, however the Government may hold them if it is necessary to clarify information. 9) Has the end-user seen a system working on their hardware? Would we have the opportunity to do this? ANSWER: We don't have such hardware yet. The development of the hardware will be the following purchase. Every vendor has equal opportunity to this purchase. We would highly encourage you to send your bid. 10) Will the lowest bid win or will the system capabilities and future growth opportunities be considered? ANSWER: Proposals will be evaluated as indicated in the CBD notice/solicitation. The Government will select the system considered most advantageous to the Government.

Record

Loren Data Corp. 20001228/66SOL003.HTM (W-361 SN5096N2)