2223135000
Higher Colleges of Technology
Fujairah Men’s College (FMC)
Crane Helicopter
Product design project for Engineering Design – EGN 4923
Program: Bachelor of Applied Science in Mechanical Engineering Technology
Monitor: Dr.Laith Al jubooriTeam Members:
Amna Rashed ID: H00277910
Khadeja Tamrouq ID: H00271232
Table of Contents
TOC o “1-3” h z u Abstract: PAGEREF _Toc511469310 h 4Phase 1: Mission Statement PAGEREF _Toc511469311 h 5Product description: PAGEREF _Toc511469312 h 5Mission Statement: PAGEREF _Toc511469313 h 6Phase 2: Customer Needs: PAGEREF _Toc511469314 h 7Interview Questions: PAGEREF _Toc511469315 h 7Survey Questionnaire: PAGEREF _Toc511469316 h 8Completed Interview: PAGEREF _Toc511469317 h 8Survey results (from 4 respondents): PAGEREF _Toc511469318 h 10Identified Customer needs: PAGEREF _Toc511469319 h 14Phase 3: Reflection on the process PAGEREF _Toc511469320 h 15Phase 4: Product specifications: PAGEREF _Toc511469321 h 151.Objectives tree PAGEREF _Toc511469322 h 152.Functional analysis method: PAGEREF _Toc511469323 h 16Patent related: PAGEREF _Toc511469324 h 17Patent title: Crane for field maintenance of helicopter PAGEREF _Toc511469325 h 17Publication date: 2012-04-11 PAGEREF _Toc511469326 h 173.Performance specifications PAGEREF _Toc511469327 h 19Phase 5: Product Concept PAGEREF _Toc511469328 h 19House of quality PAGEREF _Toc511469329 h 19Morphological chart PAGEREF _Toc511469330 h 20Evaluation using Weighted Objective Method: PAGEREF _Toc511469331 h 20Chosen solution concept: PAGEREF _Toc511469332 h 21Product design of crane Helicopter: PAGEREF _Toc511469333 h 21Static structural Analysis of Crane Helicopter: PAGEREF _Toc511469334 h 22Conclusion: PAGEREF _Toc511469335 h 25References PAGEREF _Toc511469336 h 26
TOC h z c “Figure” Figure 1: Crane Helicopter PAGEREF _Toc511469797 h 5Figure 2: Survey result-1 PAGEREF _Toc511469798 h 11Figure 3: Survey Result -2 PAGEREF _Toc511469799 h 11Figure 4: Survey Result-3 PAGEREF _Toc511469800 h 11Figure 5: Survey result-4 PAGEREF _Toc511469801 h 12Figure 6: Survey result: 5 PAGEREF _Toc511469802 h 12Figure 7: Survey result- 6 PAGEREF _Toc511469803 h 13Figure 8: Customer needs PAGEREF _Toc511469804 h 14Figure 9: Objective tree PAGEREF _Toc511469805 h 15Figure 10: Functional analysis method PAGEREF _Toc511469806 h 16Figure 11: Functional analysis method PAGEREF _Toc511469807 h 16Figure 11: House of Quality PAGEREF _Toc511469808 h 19Figure 12: Design of crane Helicopter in solid works PAGEREF _Toc511469809 h 21Figure 13: Crane Helicopter Design with Dimensions PAGEREF _Toc511469810 h 22Figure 14: Boundary condition PAGEREF _Toc511469811 h 23Figure 15: Mashing PAGEREF _Toc511469812 h 23Figure 16: Deformation PAGEREF _Toc511469813 h 24Figure 17: Von-missis stress PAGEREF _Toc511469814 h 24 TOC h z c “Table”
Table 1Mission Statement PAGEREF _Toc511469815 h 6Table 2: Performance Specification PAGEREF _Toc511469816 h 19Table 4: Weighted Objective Method PAGEREF _Toc511469817 h 20
Abstract:
The crane helicopter is used to replace bulky material which cannot replace by conventional tool i.e. the crane helicopter useful at the area where it is inconvenience to lift by other material handing instrument. The crane useful at the tall building, hills, mountains and dessert areas to carries load and replace at suitable location. It is also useful at the time of natural disaster occur and convention vehicle or vehicle which run through road cannot effective at the time. So crane helicopter is useful at the time of emergency.
The purpose of this project is to improve the existing performance and enhance quality of crane helicopter. The project demonstrate different results of survey which useful for performance evaluation. Demonstrate the customer needs, provide objective tree of the crane helicopter. Function analysis in order to obtain safety criteria. Further discuss about the performance specification. House of quality, morphological graph and weighted objective method in order to select best product as per current market specifications.
In this project, we had concentrate in improving the crane helicopter and the main two adjustment is adding storage tank and safety boats.
At last design model of crane helicopter in solid works software and perform static structural analysis to obtain behaviour under actual circumstance. The external applied load and boundary condition are assume for the project and plot result such as deformation and von-missis stress of the object. The deformation occur 0.0088 mm and stress induce 12.47 MPa
Phase 1: Mission Statement
Product description:Our group project aimed to improve existing product by improving its functionality or enhancing quality. Hence, we discussed various products and ended up to focus on crane helicopter for this project. The crane helicopter was developed to lift heavy loads. Sikorsky S-64A is also employed in the civil market. Its highly reliable, versatile and cost-effective aspects make it to utilize in petroleum and logging industry and construction sector and in fire-fighting industry. Even it is used to transport supplies from one place to another such as ships to land, in the construction of power lines, oil rigs and other operations. Hence, the need of this product would be required at all times.
But according to the industry specific needs and considering other aspects preferred by customers can be focused to improve the existing product. As we know that the use of crane helicopter in UAE can be found not only in military aspects but it can be used on construction sector, oil and gas sector, fire-fighting and in handling cargo, so in shipping industry and in other industries to load and unload.
Figure SEQ Figure * ARABIC 1: Crane HelicopterMission Statement:Table SEQ Table * ARABIC 1Mission StatementProduct description Structural aspect – Crew: 3, length – 88.48 ft; width – 72.01 ft; Height – 25.43ft; Empty weight – 19,798 lb (8,980 kg); MTOW: 46,297 lb (21,000 kg)
Installed power – 2X Pratt ; Whitney T73-P-700 turboshaft engines develops 4,800 shaft horsepower each powers a six-blade main rotor and a 4-blade tail rotor. (Militaryfactory.com, 2017)
Benefit proposition Load lifting
Military purpose. Heavy lift cargo and fire fighting
Key business goals Multi-purpose
Cost effective
Varied sizes according to industry needs more specific features.
Primary markets Military
Secondary markets Civilian – heavy lift cargo and firefighting, construction, oil and logging industry and other operations. (Militaryfactory.com, 2017)
Assumptions and constraints Certain material to reduce cost and improve quality
Stakeholders Company, manufacturers, military, production, government and other sectors (civilian)
Phase 2: Customer Needs:Interview Questions:Question 1: What do you know about crane helicopter?
The crane helicopter used to lift heavy loads. The crane helicopters carries loads connected to long cables in order to carries heavy loads which is inconvenience to lift by other material handling instrument. The crane helicopter useful at the inaccessible areas, such as tops of tall buildings or the top of the hill, mountain, load carries at uneven geometry where conventional vehicle cannot reach in order to lift load and replace at other location.
Question 2: What is the most common problem you face with crane helicopter?
The balancing of crane helicopter at the time of lifting and after lifting are the common problem face with crane helicopter.
Question 3: How to improve the existing product to meet the future need?
Solve balancing issue through unbalance load, maximum work output, increase load lift capacity and optimize design of crane helicopter.
Question4: How to improve the design of existing product?
Reduce noise and control the noise of the operating design, use most suitable material for the body of the crane helicopter e.g. composite material, use composite material for the string of the crane lift. Reduce additional vibration of the entire body of crane helicopter.
Question 5: From your point of you are you ready to buy a crane helicopter to meet your needs?
The research and experimental performance can provide actual conclusion of the design change from the crane helicopter body. According to provided suggestion for the design change can ready to buy which meet our needs.
Survey Questionnaire:Question 1: Do you prefer night vision to be added in crane helicopter?
Yes, I would like to prefer night vision need to add in crane helicopter.
Question 2: For safety issue, do you prefer to add safety boats?
Yes, it is recommend to add safety boats to the crane helicopter.
Question 3: Would you like to add alternative storage tank?
Yes, it is require for safety or in case emergency.
Question4: Do you prefer to add GPS system connected to an app in smartphone?
Yes, GPS system can help to find the specific location where hazards occur and also help to reach desire location.
Question 5: Would emergency button will be helpful?
Yes, emergency button helpful at the time of emergency.
Question 6: Would you prefer to add automatic position locater?
Yes.
Completed Interview:Response 1:
What do you know about crane helicopter?
Carry load
What is the most common problem you face with crane helicopter?
Maintenance
How to improve the existing product to meet the future need?
To meet our industry specific
How to improve the design of existing product?
No idea about it.
From your point of you are you ready to buy a crane helicopter to meet your needs?
Yes, but it should be cheap and affordable.
Response 2:
What do you know about crane helicopter?
Supports to carry heavy load from one place to another
What is the most common problem you face with crane helicopter?
Not possible to use in all places
How to improve the existing product to meet the future need?
Small or varied size would be better
How to improve the design of existing product?
Don’t know.
From your point of you are you ready to buy a crane helicopter to meet your needs?
It is costly to buy. So, I prefer to take rent when needs.
Response 3:
What do you know about crane helicopter?
Military use and in oil industry
What is the most common problem you face with crane helicopter?
Not aware
How to improve the existing product to meet the future need?
It should be used in wide range of settings.
How to improve the design of existing product?
Don’t know
From your point of you are you ready to buy a crane helicopter to meet your needs?
When the need is less, spending more money on it is not possible.
Response 4:
What do you know about crane helicopter?
Carry heavy load
What is the most common problem you face with crane helicopter?
Maintenance and sometimes it doesn’t meet our requirement.
How to improve the existing product to meet the future need?
Improve safety standards
How to improve the design of existing product?
Don’t know much about it.
From your point of you are you ready to buy a crane helicopter to meet your needs?
If it is affordable ready to buy.
Survey results (from 4 respondents):
Figure SEQ Figure * ARABIC 2: Survey result-1
Figure SEQ Figure * ARABIC 3: Survey Result -2
Figure SEQ Figure * ARABIC 4: Survey Result-3
Figure SEQ Figure * ARABIC 5: Survey result-4
Figure SEQ Figure * ARABIC 6: Survey result: 5
Figure SEQ Figure * ARABIC 7: Survey result- 6Identified Customer needs:Varied size
Industry specific
Safety
Quality
Cheap
Figure SEQ Figure * ARABIC 8: Customer needsPhase 3: Reflection on the processThe survey results reveal that almost everyone agrees with some of the improvements associated with safety and storage options.
From the response of survey and interview it is found that 86% of them prefers night vision. But on the other hand, everyone prefers to include safety boats, emergency buttons and automatic position locator and alternative storage options.
Above 90% stresses to have GPS connection connected to their smartphones. Hence, the importance of safety is given more attention. The interview also points out to consider the industry specific needs and if it is cheap and affordable it would be bought by many to meet their needs. Hence, they cost of the crane helicopter makes many to be hesitant to buy the product.
Phase 4: Product specifications:Objectives tree
Figure SEQ Figure * ARABIC 9: Objective treeFunctional analysis method:-52197036258500Black box model
Figure SEQ Figure * ARABIC 10: Functional analysis method-29464041656000
Figure SEQ Figure * ARABIC 11: Functional analysis methodPatent related: No of patents related: 3 patents
Patent title: Crane for field maintenance of helicopter
Abstract:
The utility model discloses a crane for field maintenance of a helicopter; the crane comprises a hand winch, a main rod, a cantilever, a pulley block, lifting ropes, pulley hooks and an adjustable strut, wherein the hand winch is fixed on the main rod; the cantilever is hinged with the upper end of the main rod; both ends of the adjustable strut are hinged with the main rod and the cantilever respectively; the pulley block is arranged on the main rod and the cantilever; the lifting ropes are arranged along the main rod and the cantilever; one end of each lifting rope is connected with the hand winch, while the other end is fixed on the cantilever; the pulley hooks are sleeved to the lifting ropes; a long connection rod, a short connection rod and a reinforcer for supporting and locating are mounted on the main rod; the long connection rod and the short connection rod are positioned in the middle of the main rod and corresponding to hitching holes on the helicopter; and the reinforcer is positioned at the bottom -of the main rod and corresponding to a main undercarriage hole of the helicopter. The crane of the utility model has the characteristics of rational design, simple structure, flexible operation, easiness in assembly and disassembly, convenience in container transportation, flexible site maneuverability, strong practicability, reliability, safety, etc., thereby meeting work requirements of field maintenance support of the helicopter.
Inventors: ZHENGJIAN CHEN; DAYING YANG; AN OUYANG +Publication date: 2012-04-11Patent web link:
https://worldwide.espacenet.com/publicationDetails/biblio?FT=D;date=20120411;DB=;locale=en_EP;CC=CN;NR=202186858U;KC=U;ND=4Project title: crane helicopter
No of patents related: 3
Patent title: Multibody aircraneAbstract:
This invention performs relative positioning, predictive control, and ballast control to achieve very heavy-lifting tasks on land or sea. Such tasks allow station keeping and precise transfer of very heavy payloads between ships underway. This scalable multibody system features three subcomponents: Airship, Skycrane and Loadframe. This semi-autonomous system combines aerodynamic (kinetic) and aerostatic (buoyancy force) lift with efficient power and propulsion. During low-speed flight, the Airship and Skycrane are decoupled but linked via a reelable Tether Control Line. Beneath the Skycrane, centered on its hull, a patented NIST (National Institute of Standards and Technology) RoboCrane, featuring a computer controlled six degrees of freedom (DoF) cabling system, is attached, to precisely suspend and control a Loadframe, with or without payload. During subsonic forward flight, these Airship and Skycrane are coupled as a single airframe: fuselage and delta wing.
Inventors:
McWhirk; Bruce Kimberly (Brookline, MA)
Publication date:
March 2, 2007
Patent web link:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2;Sect2=HITOFF;p=1;u=%2Fnetahtml%2FPTO%2Fsearch-bool.html;r=1;f=G;l=50;co1=AND;d=PTXT;s1=%22Multibody+aircrane%22;OS=
Performance specificationsTable SEQ Table * ARABIC 2: Performance SpecificationRequirement Details Desired
Economical Moderate / reasonable ?
Working condition All seasons ?
Accessories Additional Storage box
GPS
Auto location detector
Night vision ?
Shape Varied size / specific needs of industry ?
Safety Emergency button
Safety boats
Location detector ?
Price ?
Phase 5: Product ConceptHouse of quality
Figure SEQ Figure * ARABIC 11: House of QualityMorphological chartRequired function Idea 1 Idea 2 Idea 3
Safety 4248153765550-27941-806450-32385602615Safety boats Location detector GPS ; emergency button
Height control 87757032321500sensor 4559303238500-1270553720Moving mechanism Gas storage Gasoline bottles Storage tank Evaluation using Weighted Objective Method:
Table SEQ Table * ARABIC 4: Weighted Objective MethodWeighted objective method
Material used Structural steel Composite material Epoxy material Fibre
Economic cost (£) 575 – 585 580-585 720-740 800-820
Safety feature 65% 60% 65% 75%
Usage 25 – 30% 30-35% 25- 35% 50 – 55 %
Aesthetic outlook 65% 55% 60% 50%
Chosen solution concept:From the morphological chart of the Crane helicopter, we found that the design for the varied size is difficult for the time being. But provision of additional storage and all the safety aspects such as providing night vision, automatic location detector, GPS connected to smartphones and emergency buttons can be done at this level. Only on the specific need, the safety boat option can be included, such as while functioning in oil and gas industry/ rigs.
Product design of crane Helicopter:
The crane helicopter is design using solid works software. The structural steel material used to design crane helicopter and design demonstrate in following figure.
Figure SEQ Figure * ARABIC 12: Design of crane Helicopter in solid worksThe overall dimension are demonstrate in following figure.
Figure SEQ Figure * ARABIC 13: Crane Helicopter Design with DimensionsStatic structural Analysis of Crane Helicopter: In order to obtain the behaviour of the external loading condition, following are demonstrate the static structural analysis of crane Helicopter. For the construction of crane helicopter, the composite material for the body construction. It is assume that the crane helicopter contain external load 100 N in vertical Y-direction. The frame of crane helicopter consider fixed with zero degree of freedom. The finite element method have used to perform static structural analysis. The entire body separate out into small element into equal size. The boundary condition and loading condition have demonstrate into following figure. The default mash properties have applied with element size 5mm. the numbers of nodes 285424 and elements 139305. The mashing operation have perform in order to obtain equal size of elements in entire body.
Figure SEQ Figure * ARABIC 14: Boundary condition
Figure SEQ Figure * ARABIC 15: Mashing
Figure SEQ Figure * ARABIC 16: Deformation
Figure SEQ Figure * ARABIC 17: Von-missis stressAfter performing mashing operation and applied boundary condition and loading condition to body. It is require to perform final stage of simulation (Static structural analysis). The deformation and von-missis stress have obtained while performing static structural analysis. The deformation obtained 0.00886 mm which is considerable negligible for the crane helicopter. The von-missis stress have obtained 12.475 MPa maximum form the design parameter. The figure of von-missis stress provide recommendation in order to safe design i.e. it provide safety limit or yield strength of the body. That provide detail about how much helicopter can carry load.
Conclusion:
In order to enhance performance and improve quality of product, it is require design, development and analysis. The report discuss about the different criteria for the selection of material and design in given circumstances. Demonstrate performance evaluation and different criteria for selecting best design with in constrain. The design and drafting perform in solid works software and further prepared design analysis using finite element method. The software solution conventional for the project objective. The static structural analysis have perform and plot graph in order to find the behaviour. The material selected as structural steel for design crane helicopter and perform static structural analysis to find deformation and von-missis stress. The deformation obtained 0.008 mm which can neglected for design point of view. At this stage, it is suitable design and safe design.
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