전기엔진 장착을 위한 프레임 최적 설계 보고서 [Frame optimization of nacelle of electric engine]

링크

• 공고 상세 페이지 (사람에게 건넬 링크)
• 나라장터 원문 공고

비슷한 공고

링크는 각 공고의 AI 페이지다.

끝난 공고 · 결과

• 전기엔진 장착을 위한 프레임 최적 설계 보고서 [Frame optimization of nacelle of electric engine] · 한국항공우주연구원 · 유찰
• 파드(Pod) 구조 상세설계 보완 및 제작 · 한국항공우주연구원 · 유찰
• eVAT(eVTOL기술실증기) 상세설계 용역(재공고) · 한국항공우주연구원 · 낙찰 성우엔지니어링 · 2.16억원
• eVAT(eVTOL기술실증기) 상세설계 용역 · 한국항공우주연구원 · 유찰
• 하이브리드 전기추진용 냉각시스템 성능평가를 위한 나셀 제작 · 한국항공우주연구원 · 유찰
• 단일추진체 비행하중 및 구조 해석 지원 기술용역 · 한국항공우주연구원 · 유찰

첨부파일

뷰어 링크는 사람이 원문을 볼 때 쓰는 화면이다. 이 문서들에서 뽑은 자격 · 배점 · 일정 · 발췌는 이 페이지 아래에 글로 있다.

• 1. 입찰공고문(재공고).docx · 공고규격서
• 2. Bid Notice(Re-bid).docx · 공고규격서
• 3. RFP of Frame optimization of nacelle of electric engine.docx · 공고규격서
• 4. Purchase Order_draft.doc · 공고규격서

공고 개요

재공고 · 외자 · 유찰 · 한국항공우주연구원 · 과학·기술 연구

결과

유찰

참가

0곳 · 개찰 10/07(수)

요약 AI 요약

초경량 전기 수직이착륙(eSTOL) 항공기용 하이브리드 전기 추진 시스템의 전기엔진 나셀(엔진을 감싸는 외장 구조물)을 대상으로, 다중재료 위상최적화(MM-MJ-TO)와 적층제조 설계(DfAM) 기법을 활용해 경량 구조 프레임의 예비 설계를 수행하는 사업이다.

• 나셀 내부 주요 부품(전동기, 인버터, 프로펠러 피치 제어 장치, 열교환기, 냉각 펌프)의 초기 배치 위치와 방향 제안
• 점유 영역과 구조 개발 가능 영역을 구분한 예비 나셀 형상 정의
• 자체 보유한 MM-MJ-TO 및 DfAM 코드를 이용한 초기 구조 프레임 설계 생성
• 프로펠러 하중 및 착륙 관성 하중 조건을 반영한 구조 위상 형상 도출
• 기하 형상 및 인터페이스 정보를 포함한 예비 구조 설계 문서화
• 착수회의·중간발표·최종발표 자료 준비 및 참여, 최종보고서 제출

사업 내용 · 이 공고에 든 일

중심 · 전기엔진 나셀 프레임 경량 최적설계

용역 › 학술·정책연구 › 과학·기술 연구

KARI가 제공한 설계공간과 부품 정보를 바탕으로 자체 MM-MJ-TO·DfAM 코드를 활용해 나셀 구조 프레임의 위상최적화 설계를 수행하는 이공계 위탁연구다.

• KARI 제공 설계공간·내부부품 정보 기반 주요 부품의 초기 배치·방향 후보 제안
• 점유/가용 영역 구분
• 프로펠러 하중·착륙 관성하중을 반영한 구조 위상 설계
• DfAM(적층제조 설계) 적용
• 기하·인터페이스 정보를 포함한 예비 구조설계 문서화
• 킥오프·중간·최종 발표회 준비 및 참석
• 발표자료 전자파일 제출
• 최종보고서 제출
• 계약 종료 후 1년 하자보수(보증)

평가 · 배점

협상 대상 기준 · 기술제안서 평가 후 적격업체 (80 점 이상 획득업체) 중 추정가격 이하로서 최저가격을 입찰한 자를 낙찰자로 선정

참가 자격 · 제한

업종제한

제한 없음

지역제한

제한 없음

공동수급

공동수급불허

입찰참가 제한

모름

실적경쟁 · PQ

모름

국제입찰

국제입찰

제출 방법

직찰/우편

입찰 일정

가격

외화 예산

KRW 30,000,000 (배정예산의 통화)

예정가격 방식

비예가

공고 정보

공고종류

재공고 (재입찰공고)

게시일

09/22(화)

공고번호

R26BK01742238-000

참조번호

-

공고기관

한국항공우주연구원

수요기관

한국항공우주연구원

계약방법

일반경쟁

낙찰방법

규격가격동시입찰

계약유형

총액계약

예정가격 방식

비예가

추정가격

-

배정예산

-

사전규격번호

R26BD00270629

재공고

재공고

출처

나라장터

문서 발췌

과업·요구

=== 2. Bid Notice(Re-bid).docx === September 22, 2026 Bid Notice (Re-bid) < No. B20260496-01 > Korea Aerospace Research Institute (KARI) invites sealed bid from eligible Bidders for Frame optimization of nacelle of electric engine. The following is an outline of the requirements, so potential Bidders are requested to carefully review the following instructions and to submit their Proposals in accordance with the guidelines and requirements as contained in the Item Requirements. 1. Main Scope - Item: Frame optimization of nacelle of electric engine -Quantity: For the details, please refer to RFP of Frame optimization of nacelle of electric engine -Contract Period: By December 18, 2026 from Effective Date of Contract (EDC) -Estimated Budget: KRW 30,000,000 -Method of Contract: an open competitive bid (two-step simultaneous competitive bid, lowest bid price)

One of key elements of the HEP system is the nacelle, which serves as the installation platform for the electric engine unit and its associated supporting systems. Unlike a conventional nacelle that primarily provides an aerodynamic enclosure and structural support for the propulsion system; an electric-engine nacelle must accommodate propulsion, power-electronic, thermal-management, and associated interface requirements within a compact installation envelope. Major nacelle-resident components, including the electric motor, inverter, propeller pitch-control hardware, heat exchanger, and cooling pump, need to be arranged such that individual component and combined system requirements are satisfied This project will perform a preliminary structural frame design of the nacelle using the integrated Multi-Material Topology Optimization and DfAM (Design for Additive Manufacturing) for the light-weight design. 1.2 Schedule and process 1.2.1 Schedule and location Table 1 Schedule

1.2.1.1 Kick off meeting shall be performed at the contractor site but it can be changed (exact date will be determined later) Final meeting shall be held at the KARI. (exact date and location will be fixed later) 1.2.2 Selection process and schedule 1.2.2.1 Selection process 1.2.2.2 Inquiries related with a proposal preparation may be asked or sent by mail to the following persons. Jae Sung Huh, Ph.D. Aeropropulsion Research Division Korea Aerospace Research Institute 169-84 Gwahak-ro, Yuseong-Gu, Daejeon, Korea jshuh@kari.re.kr Tel) 82-42-860-2831 / Fax) 82-42-860-2626 1.3 Conditions for modification and cancellation of SOW 1.3.1 KARI reserves the right to change or modify the SOW if there is any change in the technical and business requirements of the SOW even after SOW issuance. Upon the incurred changes or modification of the SOW as above, the contractor shall submit the modified proposal in accordance with the specific instructions provided by KARI. 1.3.2 KARI reserves the right to withdraw this SOW at any time with a written notice to the contractor, in case of the proposal provided by the contactor does not meet the requirements of the SOW. 1.4 Preparation of the proposal 1.4.1 Proposal shall be prepared in English. 1.4.2 The basic unit shall be SI unit. British unit of power and weight could be used as a complementary unit. SI unit comes first and British unit shall be put in parentheses.

Figure 1. Schematic of HEP system For the proposed eSTOL application, the electric engine and the related components such as heat exchanger and cooling pump must be contained within a compact nacelle. The nacelle must not only provide adequate space for all components (in a small volume) but also account for their structural and thermal mounting requirements. 2.2 Electric Engine The electric propulsion unit and its supporting systems are integrated within an engine nacelle, as illustrated in Fig. 2. In addition to providing an aerodynamic enclosure, the nacelle accommodates major propulsion, electrical, and thermal-management components, including the electric motor, inverter, propeller pitch-control hardware, heat exchanger, and cooling pump. These components must be integrated within a compact and lightweight envelope while maintaining adequate installation space, accessibility, connections, and structural interfaces. a) b) Figure 2. (a) Example of electric engine nacelles (Electra Aero EL9). (b) The design space available for the eSTOL HEP nacelle. 3 Scope of work 3.1 General Description The goal of this project is to establish a structural frame design for an electric-engine nacelle based on KARI’s requirements using effective MM-MJ-TO and DfAM in-house codes. The work shall develop initial structural supports within the available nacelle envelope. The initial frame design will consider geometric compatibility, installation and accessibility requirements, mass distribution, thermal-management requirements, and space for electrical and coolant connections. The MM-MJ-TO design will provide a basis for further structural and aerodynamic development later in the project.

3.2 Topology optimization of lightweight electric-engine nacelle 3.2.1 KARI shall provide the available design space for a nacelle and relevant information on the major internal components, including their dimensions, mass, thermal characteristics, installation requirements, structural interfaces, and other design information necessary for the proposed work. Based on the information provided by KARI, the contractor shall propose initial feasible locations and orientations of the major internal components within the available nacelle envelope. The candidate arrangements shall also be used to distinguish the regions occupied or restricted by the installed components from the remaining space available for subsequent structural development. An example illustrating the geometric definition of occupied and available regions within a structural envelope is shown in Fig. 3. Fig. 3. Schematic of the preliminary nacelle configurationand component classification 3.2.2 The contractor shall use their own in-house MM-MJ-TO code with DfAM code as needed with the relevant structural interfaces (as identified by the available propulsion-system information provided by KARI) to generate initial structural frame designs. Representative loading information, such as the forces and moments associated with the propeller system and maneuver loading illustrated in Fig. 4, will be utilized to shape the structure topology.

Fig. 4. Representative propulsion and landing induced loading conditions 3.2.3 The contractor shall document the preliminary structural design of the frame with associated geometric and interface information. The resulting design shall provide a basis for future structural design refinements and further aerodynamic nacelle development. 3.3 Kick-Off and Final Meeting 3.3.1 The contractor shall prepare for and participate in the kick-off and final meetings. 3.3.2 Presentation and supporting materials used during the kick-off and final meetings shall be provided to KARI in electronic file format for project documentation. 3.3.3 If sensitive or restricted information is included, it shall be removed before the materials are provided to KARI. 4 Other requirements 4.1 Meeting room for kick-off and final meetings 4.1.1 A meeting room shall be prepared by contractor for kick-off meeting at contractor’s location 4.1.2 The meeting room shall be equipped with free WIFI. 5 Proposal Requirement 5.1 Contents of Proposal requirements 5.1.1 Proposal summary 5.1.2 Consultants 5.1.2.1 Consulting team summary 5.1.2.2 Consultants experiences 5.1.3 Proposal 5.1.3.1 Scope of work for key topics 5.1.3.2 A monthly base plan 5.2 Price proposal 5.2.1 Estimated Budget: KRW 30,000,000 5.2.2 Price shall be proposed in Korean WON (Y2026). 5.2.3 Contractor shall include all cost items to cover the all activities in their proposals and itemize requested items.

배점·평가

과업·요구

=== 4. Purchase Order_draft.doc === PURCHASE ORDER 1. Subject: Frame optimization of nacelle of electric engine 2. Purchase Order Number: No. KARI-26-TBD 3. Buyer (hereinafter "KARI")

- Topology optimization of lightweight electric-engine nacelle - Proposed initial feasible locations and orientations of major internal components - Project meetings (Kick-off, Interim, and Final presentations)