Harry Himelblau Jr.

Harry Himelblau Jr.

WORK OBJECTIVE

Obtain employment which utilizes my technical knowledge and variety of

work experience in tructuraJ dynamics and aeroacou tics to support the goals

of my employer.

EDUCATION

BSME, lllinois In titute of Technology, plus courses in aeroelasticity,

acoustics, static and dynamic stability of structures, shell vibration, random

data analysis, earthquake engineering, modal analysislte t correlation, and

product reliability, mainly at UCLA.

RECENT EXPERIENCE Jet Propulsion Laboratory 1986-Present

Provided dynamic upport on Cassini, Galileo, Mar Pathfinder, NSCA T,

Mars Observer, and other JPL spacecraft and instruments. Performed special

NASA and Air Force studies.

Casini Spacecraft (Saturn orbiter to be launched on Titan IV/Centaur).

Cas ini upport included the exten ive editing and evaluation of prior Titan

IV flight acoustic data, and the election and operation of Cas ini dynamic

flight instrumentation.

Galileo Spacecraft (Jupiter orbiter launched on ShuttJe/IUS).

Galileo support comprised mainly of a nuclear hazard as essment of a

potential Challenger-type Shuttle disaster on the structural integrity of the

Plutonium-fueled Radioi otope Thermoelectric Generators (RTGs).

Directed penetration test of explosively-driven SRB segments through

Orbiter structure to determine fragment velocity attenuation at RTG locations.

Guidelines for Dynamic Environmental Criteria.

With NASA funding, currently leading a task team to complete a detailed 300-

page ummary on the development of dynamic design and test criteria. In

addition, recently completed a pyroshock test criteria standard, which

include a comprehensive review of problem associated with test

performance, as well as the prediction, measurement, analysis and simulation

of pyroshock environments. Performed a breakthrough 3-D vs I-D random

vibration te 1 comparison.

Handbook of Dynamic Data Acqui ition and Analysis.

With Air Force funding, led a task team and co-authored a 350-page

document on nearly all aspects of this field. Under Congressional pressure,

the Air Force relinquished its right to publication, leaving JPL to select the

Institute of Environmental Science to publish the document as a

recommended practice. Team members have sub equentIy pre ented everal

tutorial cour es u ing the handbook.

PRIOR EXPERIENCE Rockwell International (now Boeing), Space Systems Group

Space Shuttle Program.

Made significant contributions to Rockwell's winning proposal. Suggested

use of off-site facilities to reduce contractor costs, e.g., NASA/NSFC for

scale model rocket engine acoustic tests and NASA/JSC for Orbiter structure

vibroacoustic tests. Derived fir t generation aeroacoustic and internal

vibration environments for Orbiter structure and equipment using Apollo,

Saturn and Titan flight data. Participated in wind tunnel testing at NASA/

Ames to further define aerodynamic noise. Prepared many briefings.

After contract award, participated in selection of large Orbiter vibroacoustic

test specimens. Then concentrated on the Orbiter's critical Thermal Protection

Subsystem (TPS). Proposed TPS fatigue tests. Originated and acted as test

director of multi-environmental testing of Orbiter structureffPS configuration

at NASA/Langley. Environments comprised rain, liftoff acoustics/inplane

(IP) static load, transonic/qmax acoustic/IP and differential pressure (ΔP) static

loads, ascent heating/vacuum, on-orbit cold/vacuum, entry heating/vacuum

profile, TAEM acoustics/IP and ΔP, and landing static load. After loss of

TPS tiles during first Orbiter delivery, supported studies by NASA/Langley

and special TPS "Tiger" Team to improve TPS structural integrity.

Following discovery of the Palmdale "bulge", reviewed Orbiter assembly

tooling/GSE for seismic resistance. Specified structural modifications. Wrote

GSE seismic criteria and reviewed NASA/KSC GSE and certain facilities

used for Shuttle launches from VAFB (subsequently canceled after

Challenger diaster). Supported evaluation of earthquake faults in the vicinity

of launch site, the utilization of probabilistic risk assessment techniques for

Shuttle prelaunch exposure, the effects of soil-structure interaction on Shuttle

response, and the selection of eismological and earthquake engineering

contractors.

Performed flow-induced vibration analyses for a wide variety of feedline

bellows and flexhoses, and directed flow tests.

B-1 Program.

While on part-time loan, participated in wind tunnel definition of weapons

bay aerodynamic noise and election of spoiler configurations to attenuate

cavity resonances for the tandem multi-bay array. Coherence data processing

was used to identify flow-induced resonance characteristics.

Saturn V S-II Stage.

Revised vibration criteria based on S-IV and S-II flight data. Supported S-II

component vibration tests, especially large, complex feedlines. Performed

special studies related to S-II POGO resolution. Wrote a landmark assessment

on vibroacoustic response prediction, analysis and testing.

Apollo Command/Service Module.

Supervised dynarnicists who predicted Apollo shock and vibration

environments, established general and detailed design and test criteria,

analyzed ground test and flight data, consulted with designers and system

engineers, monitored vendor analyses and tests, coordinated with stress,

reliability, associate contractor and customer representatives.

Performed a variety of specialized dynamic studies, including comparison of

vibration respon e due to acou tic and aerodynamic noise, and prediction of

pyroshock transmission.

Northrop Electronics (now Lockheed-Martin)

Predicted and mea ured dynamic environments on Skybolt stellar-inertial

guidance system. Consulted with designers regarding effects on system

performance. De igned a pallet to protect guidance equipment from severe

vibration of a rocket-propelled sled, elected led-borne instrumentation,

supervised data reduction, and determined sy tern suitability to withstand the

missile flight environment. Re earch on non-Gaussian distributions and

collision of nearby oscillators. Made tructural impedance measurements on

Snark missile. Prepared design and te t criteria for Ranger spacecraft.

Bolt Beranek and Newman (now GTE)

Reviewed equipment vibration requirements for surface-launched Titan I and

predicted silo-launched Titan II environments. Supported measurements of

acoustic and hydrodynamic pressure fields for silo-launched Minuteman.

Performed various small research studies, including design problems in high

intensity acoustic facilities.

North American Aviation (now Boeing)

Performed laboratory vibration tests of aircraft equipment and structures.

Consulted with design groups on gun blast, equipment protection, flutter

damping, landing gear brake chatter, dynamic criteria and instrumentation,

mostly on F-86 and F-l 00 aircraft. Protected fragile Navaho guidance

equipment from transportation and handling shock and vibration.

Armour Research Foundation (now IITRI)

Elimination of automobile brake chatter, the cau e of which was determined

from laboratory and road test data analy is. Various potential solutions were

road tested. Studied vibration from large slow-speed single-cylinder steam

engines. Recommended ten different methods of attenuation. Field inspector

and site representative for test structures (over 75) and instrumentation (650

sensors, 400 cbannels) at the 1953 Nevada nuclear test (Knothole).

Measured propeller-induced vibration of a Great Lakes ore carrier.

US Naval Engineering Experiment Station (now NSRDC)

Reduced machinery vibration transmission, mainly by selection and

positioning of re ilient mounts. Theoretical predictions were checked by

submarine tests. Determined equipment response to high impact shock tests.

Practical methods of attenuating structurebome noise were evaluated, e.g.,

machinery part redesign, and application of damping materials.

TECHNICAL SOCIETIES AND AWARDS

Acoustical Society of America, Fellow.

(Former member, Technical Committee on Structural Acoustics)

(Former Chairman, LA Chapter)

Institute of Environmental Sciences, Fellow.

(Recipient, Irwin Vigne Memorial Award)

(Recipient. two Maurice Simp on Best Paper Awards)

(Certificates of Appreciation)

SAE Committee G-5 on Aerospace Shock and Vibration, Vice-Chairman.

(Certificate of Appreciation, SAE Technical Board)

TEACHING

University of California at Los Angeles

Instructor, "Fundamentals and Applications of Structural Dynamics and

Aeroacou tics", three quarters, offered biannually.

Pennsylvania State University

Lecturer on fatigue and crack propagation, and plate and shell vibration,

"Vibration Control Seminar".

Technical Papers Authored or Co-Authored by Harry Himelblau

1. "Isolating the Noise and Vibration of Rotating Machines", Product Engrg, June 1952.

2. "Effects of Resilient Foundation on Vibration Isolation", Product Engrg, Nov. 1952.

3. "Fundamentals of Guided Missile Packaging", DOD Doc. RD 219/3, three sections, July 1955.

4. "How to Perform a Vibration Analysis", Machine Design, Dec. 1955.

5. "Analytical Method for Designing Dynamic Vibration Absorbers", Machine Design, Sept. 20,

1956.

6. "A Comparison of Periodic and Random Vibration Problems", Proc. 3rd Nat. Flight Test

Instrumentation Symp., Instr. Soc. Amer., May I, 1957.

7. "A Statistical Method for Determining Vibration Damage to Airborne Equipment", SAE Paper

195A, Oct. 1957.

8. "Equipment Rigid-Body Properties for Providing Vibration Protection", SAE Paper 195B, Oct.

1957.

9. "Optimum Selection of Reed Gage Natural Frequencies", SAE Paper 195C, Oct. 1957.

10. "A Reliable Approach to Protecting Fragile Equipment from Aircraft Vibration", SAE Comm.

G-5 Doc. 67, Oct. 1957 (AI 0 NAA Rep. NA-56-J030).

11. "Random Vibration Nomograph", Noise Control, July 1959.

12. "Space Requirements for Simple Mechanical Systems Excited by Random Vibration", 1. Acoust.

Soc. Amer., Jan. 1960.

13. "Vibration of a Resiliently Supported Rigid Body", Shock and Vibration Handbook, Ch. 3,

McGraw-Hill, 4th Ed., 1994.

14. "Universal Random Vibration Nomograph", Noise Control, Sept. 1961.

15. "Measurement of Mechanical Admittance or Impedance", Design of Vibration Isolation Systems,

App, 3.7, SAE Doc. AE-3. 1962.

16. "On the Quantitative Description of Non-Gaussian Random Signals", 1. Acoust. Soc. Amer.,

May 1962.

17. "The Response of Nonlinear Systems to Random Excitation", 1. Acoust. Soc. Amer .. Nov.

1962.

18. "Comparison of Predicted and Measured Vibration Environments for Skybolt Guidance

Equipment", Shock and Vibration Bull., No. 33, Pt III, Mar. 1964.

19. "Graphical Method of Calculating rms Values for Shaped Random Vibration Spectra", Shock

and Vibration Bull., No. 33, Pt 2, Dec. 1964.

20. "Use of Abbreviated Serie to Describe Non-Gau sian Random Signals", 1. Acoust. Soc.

Amer., June 1965.

21. "Desired Telemetry System Characteristics for Shock, Vibration and Acoustic Measurements",

Proc. 2nd Internat. Telemetry Conf., Oct. 1966.

22. "Mechanical Shock of Honeycomb Structure from Pyrotechnic Separation", Shock and Vibration

Bull., No. 37, Pt IV, Jan. 1968.

23. "Assessment of Space Vehicle Aeroacoustically-Induced Vibration Prediction, Design, Analysis

and Testing", NASA CR-1596, July 1970.

24. "Aeroacoustic, Vibration and Shock Environments for the Space Shuttle Orbiter", UCLA

Structures Seminar, Oct. 1971.

25. "An Interim Report on Shuttle Orbiter Vibroacoustics", Shock and Vibration Bull., No. 47, Pt 3,

Sept. 1977.

26. "The Shuttle Orbiter DI-19 Multi-Environmental Test Program", J. Acoust. Soc. Amer., Dec.

1981.

27. "Evaluation of a Procedure for the Analysis of Nonstationary Vibroacoustic Data", J. Inst.

Envir. Sc., Vol. xxxn, No.2, pp 35-42, Mar./Apr. 1989 (Simpson Award winner).

28. "Development of Cassini Acoustic Critera Using Titan IV Flight Data", Proc. 38th ATM, Inst.

Envir. Sc., Vol, 2, pp 307-331, May 1992.

29. "Summary of Guidelines for Dynamic Data Acquisition and Analysis", Proc. 64th Shock and

Vibration Symp., Vol. I, pp 121-132, Oct. 1993.

30. "Summary of Cassini Acoustic Critera Using Titan IV Flight Data", 1. Inst. Envir. Sc., Vol.

XXXVI, No.5, cover and pp 19-27, Sept./Oct. 1993.

31. "Handbook for Dynamic Data Acquisition and Analysis", lnst. Envir. Sc. Doc. IES-RP-

DTE012.1, 350 pp, Mar. 1994 (received Vigness Award).

32. "A Procedure for Editing Flight Dynamic Data Using a Combination of Digital Processing and

Manual Removal of Electrical Noise Spikes", Proc. 65th Shock and Yibration Symp., Vol. I,

Nov. 1994.

33. "Effects of Triaxial and Uniaxial Random Excitation on the Vibration Response and Fatigue

Damage of Typical Aerospace Hardware", Proc. 66th Shock and Vibration Symp., Vol. I, pp

15-32, Oct.lNov. 1995.

34. "Development of Acoustic Test Critera for the Ca sini Spacecraft", Proc. 41 st ATM, Inst.

Envir. Sc., pp 266-285, May 1996 (Simpson Award winner).

35. "The Proposed NASA Pyroshock Test Criteria Standard", Proc. 67th Shock and Vibration

Symp., Vol. 1, pp 243-262, Nov. 1996.