초고압 공간지를 이용한 포터블 인플레터블 카약 제작

박찬홍(Chan-Hong Park),박병호(Byeong-Ho Park),박종대(Jong-Dae Park),성현경(Hyeon-Kyeong Seong),임이영(Lee-Young Lim) 한국항해항만학회 2013 한국항해항만학회지 Vol.37 No.5

본 논문에서는 초고압 특수 공간지를 활용한 다기능 포터블 카약을 제작하였다. 초고압 특수 공간지를 활용한 설계로 기존의 인플레터블 카약의 성능을 개선하여 하드쉘 카약의 성능에 근접하도록 제작하였다. 하드쉘 카약의 성능과 인플레터블 카약의 기능성 및 휴대성의 장점을 모두 가진 카약을 제작하였으며, 시제품 성능평가를 통해 기존 하드쉘 카약과의 성능을 비교하였다. 저항성능 검증결과는 목표속도 6knot에 대해 Hobie KONA kayak에 비해 Developed kayak이 12.33% 저항성능이 우수하였다. 경사시험결과는 동일배수량일 경우 Hobie KONA kayak 보다 Developed kayak의 무게중심이 선저를 기준으로 22.7% 낮게 분포하고 있으며, 이는 Hobie KONA kayak 보다 Developed kayak의 무게중심이 낮음으로 복원팔(GZ)에 대한 차이가 일정부분 감소된다. 선체 복원력에서는 Hobie KONA kayak이 약간 우수한 성능을 보여주었으나, 선회력과 저항계수면에서 Developed kayak이 더 우수한 결과를 보였다. In this paper, we manufactured portable inflatable kayak using ultra high pressure drop stitch. by improving inflatable kayaks’ performance with a design using the extra-high-voltage special space paper, they were manufactured to go near to performance of hard shell kayaks. The kayaks were manufactured having all merits of the performance of hard shell kayaks and functionality and portability of the inflatable kayaks, and through performance evaluation of test products, the performance was compared with previous hard shell kayaks. About 6 knot of target speed in the verification result of resistance performance, the developed kayak was more excellent than the HOBIE-KONA kayak by 12.33%. In case of same displacement in a result of inclination test, the centroid of the developed kayak was less distributed by 22.7% than the HOBIE-KONA kayak, based on the bottoms of the ships. This makes the difference for righting arm (GZ) lessened to some degree because the developed kayak is lower than the HOBIE-KONA kayak in the centroid. In the dynamic stability of ship bodies, the HOBIE-KONA kayak showed a little excellent performance. However, in rudder force and resistance factor, the developed kayak was more outstanding than the HOBIE-KONA kayak.

키네시오 테이핑요법이 카약선수 경기력과 피로물질에 미치는 영향

하해동(Hae-Dong HA) 한국수산해양교육학회 2016 水産海洋敎育硏究 Vol.28 No.3

The objective of research was to explore the effects of Kinesic taping treatment on Kayaker’s athletic performance and muscle fatigue variable. In order to accomplish such study objective, this study employed 8 ordinary university students and 8 university kayaker’s as study subjects. The athletic performance records and blood lactate were analyzed before and after Kinesic taping treatment (KTT). Kinesic taping treatment was applied to the regions of agonist such as vastus medialis muscle, Latissimus dorsi muscle, Trapezius muscle, Biceps brachii muscle, and Triceps brachii muscle, which are major muscles for Kayaker’s. Records for rest heart rate, athletic performance and blood lactate were measured upon 200m and 500m distance exercise using kayak ergometer. Data were analyzed by SPSS 19.0 using paired t-test and one-way repeated ANOVA at significant level of a = .05. First, performance records of 200m paddling kayak showed that the ordinary university students had a mean score of 60.13 second before and 58.75 second after kinesic taping treatment. University kayakers had a mean score of 58.75 second before and 53.0 second after kinesic taping treatment. Both groups had significant differences between before and after KTT in the athletic performance. In addition, levels of blood lactate showed that the ordinary university students had a mean score of 5.89mM before and 8.90mM after KTT and university kayaker’s had a mean score of 5.79mM before and 8.48mM after KTT. The ANOVA showed that the level of ordinary university students’ blood lactate was significantly higher than university kayakers only after KTT. Second, performance records of 500m paddling kayak showed that the ordinary university students had a mean score of 2.90 minute before and 2.77 minute after KTT and university kayaker’s had a mean score of 2.30 minute before and 2.20 minute after KTT. Both groups had significant differences between before and after KTT in the athletic performance. Moreover, only university kayaker’s had a significantly higher performance record than the counterpart. Levels of blood lactate showed that the ordinary university students had a mean score of 7.71mM before and 8.85mM after KTT and university kayakers had a mean score of 8.09mM before and 8.45mM after KTT. However, such a level of increase had no significant difference between the groups

두 종류 공기주입식 카약 보트의 성능 비교 및 선수 수행력 비교 분석

이종훈(ChongHoonLee),박용현(YongHyunPark),박용현(KiJeongNam) 한국체육학회 2014 한국체육학회지 Vol.53 No.2

본 연구는 두 종류의 공기주입식 카약 보트의 성능 비교와 함께 선수들의 카약 전방 스트로크 동작의 차이점을 비교 분석하여 보다 효율적이고 안전한 카약 보트를 찾는 데 목적이 있다. 이를 위해 대한 체육회 소속 K 고등학교 엘리트 남자 선수 5명이 연구에 참여하였으며, K고 실내 수영장에서 실험을 실시하였다. 보트의 성능 평가를 위해 보트 속도, 보트 좌우 흔들림 각도 차이, 보트의 회전 평균 각속도를 산출하였으며 선수의 수행력 차이를 분석하기 위해 몸통의 회전 가동범위, 무릎 관절의 굴곡-신전 가동범위, 몸통의 최대 회전 각속도, 무릎관절의 최대 신전 각속도, 상하지 근육의 활성도를 산출하였다. 연구 결과 선수들의 수행력 평가 변인에서는 통계적으로 유의한 수치를 보이지 않았다. 보트의 성능 평가 변인에서는 보트의 속도에서 B보트가 통계적으로 유의하게 빨랐으며 다른 변인들은 통계적으로 유의한 차이를 보이지 않았다. 결국 길이가 상대적으로 길고 폭이 상대적으로 좁은 B보트는 A보트와 비교했을 때 비슷한 안전성을 갖고 있으면서 보다 효율성을 나타내었다. The purpose of this study was to investigate the differences between two inflatable kayak by recording performance related variables during the kayak forward stroke motion. A total of 5 elite high school kayak players were recruited to participate while their kinematics and muscle activations were recorded while performing inside their high school swimming pool. Boat velocity, boats swaying angle, the average angular velocity and were used to evaluate the boats performance. The player’s trunk rotational range of motion, knee flexion-extension angle range of motion, maximum trunk rotation angle, the knee flexion-extension angular velocity, and the upper and lower limb muscle activations were calculated and analyzed for the player’s efficiency evaluation. There were no significantly different variables for the player’s kinematics and their muscle activations for the two conditions. The B kayak was significantly faster than the A kaya. In addition there were no significant differences between the remaining variables for the two kayaks. In conclusion, the B kayak was faster than the A kayak, but neither of the kayaks had an influence on the player’s performance variables.

A Design and Implementation of a Kayak Simulator with Motion-Haptic Feedback

서재용,박원형,윤인호,최종민,정구철 한국지식정보기술학회 2015 한국지식정보기술학회 논문지 Vol.10 No.5

The one of the most important factors in virtual simulating systems is to convey an appropriate motion-haptic signal to users according to the virtual environment’s condition. However, most of conventional virtual simulating systems can hardly provide immersive sensation to users because they do not create motion-haptic signal. Therefore, in this paper, we design and implement a kayak simulator system which allows a user to naturally manipulate and to immersively control a virtual kayak through motion haptic feedback. In order to provide the same sensation to users as if they drive a real kayak, the implemented kayak simulator consists of three parts (a motion input part, a motion re-creating platform, and a virtual environment). The motion input part uses an inertia measurement unit (an IMU) for measuring a user’s motion which is used for control input to the kayak simulator. A virtual environment module visualized the motion of the virtual objects and an avatar onto the screen based on the measured user’s motion. To convey the motion-haptic feedback to users, the motion re-creating platform generates motion feedback information in response to the user’s interaction with virtual objects. The proposed kayak simulator is capable of dynamically expressing kayak’s motion according to the amount of user’s interaction and virtual waves. If the developed motion re-creating platform is used for constructing other virtual applications, users not only can naturally manipulate with virtual objects but also can sense realistic and immersive sensation.

협업 필터링 기법을 이용한 수상 레저용 카약 설계

박병호,박찬홍,박종대,성현경,임이영 한국정보기술학회 2014 한국정보기술학회논문지 Vol. No.

Recently, demand for water leisure sports gradually increases according to the change of given social circumstance and the change of customer needs due to the increase of free time and the increase of the national income all over the world. Accordingly, needs for various hull designs increase, not the hull design of a standardized canoe·kayak. Therefore, in this paper, we designed a kayak for water leisure by using the collaborative filtering technique in order to make it possible to actively cope with the change of increasing customer needs for various hull designs. In the collaborative filtering technique, Pearson correlation coefficient was used in order to calculate user's similarity weight. Besides, an analysis was made according to the elements such as hull, body, and propulsion system of kayak in order to select emotional words according to the kayak design reflecting user's preference. Besides, a kayak model in the aspect of customer preference was presented through factor analysis. 최근 전 세계적으로 여가시간이 늘어나고, 국민소득이 증가함에 따라 사회적 여건 변화와 소비자의 욕구 변화에 따른 수상 레저스포츠의 수요가 점차 증가하고 있다. 이에 따라 정형화되어있는 카누·카약의 선체 디자인이 아닌 다양한 선체 디자인에 대한 욕구도 증가하고 있다. 따라서 본 논문에서는 소비자의 다양한 선체 디자인에 대한 욕구가 늘어가고 있는 변화에 적극적으로 대응할 수 있도록 협업 필터링 기법을 이용한 수상 레저용 카약을 설계하고자 한다. 협업 필터링 기법에서, 사용자의 유사도 가중치를 계산하기 위해서 피어슨 상관계수를 사용하였다. 또한 사용자의 선호도를 반영한 카약 디자인에 따른 감성 어휘 선정을 위해서 카약의 선체, 바디, 추진 장치 등의 요소에 따라 분석하였다. 또한 요인분석을 통하여 고객 선호 측면의 카약 모델을 제시하였다.

3미터급 카본 카약의 저항성능 및 구조 안전성 연구

서광철,이경우,박주신 해양환경안전학회 2019 해양환경안전학회지 Vol.25 No.4

Leisure and business facilities have been steadily developing in Korea. Among waterborne leisure vessels and equipment, the distribution and sale of kayaks and canoes have significantly increased. Previously, (FRP) materials were primarily employed for constructing kayaks. However, owing to global warming and depletion of natural resources, the demand for non-polluting renewable energy is rapidly increasing, which has increased the demand for carbon fibers. To meet the requirements of changing social consciousness, a carbon fiber-based commercial kayak was designed in this study. Resistance analysis and structural safety were conducted by employing software tool for verifying the reliability of the proposed kayak. The pressure resistance and frictional resistance were examined in a wide range of speed. Obtained results indicate that at speeds greater than 2.6m/s, the pressure resistance significantly increases and the total resistance also increases. Furthermore, the results corroborate that the proposed kayak structure has a adequate safety with respect to the design loads that are considered during operating conditions. 최근 수상 레저 사업장과 레저기구의 개수는 지속해서 성장하고 있다. 수상레저기구 중에서도 카약과 카누의 보급률이 크게 증가하고 있다. 기존에는 주로 FRP 재료를 사용하여 제작하였으나, 지구온난화, 천연자원 고갈 등의 문제로 인해 청정에너지 및 신재생 에너지에 대한 필요성이 대두됨에 따라 탄소섬유에 대한 수요도 빠르게 증가하고 있다. 본 연구에서는 이러한 사회적인 변화 의식에 부합하기 위하여, 탄소섬유를 적용한 보급형 카약을 설계하고, 제품의 신뢰성을 검증하기 위하여 저항성능 및 구조 안전성 평가를 수행하였다. 속도 변화에 따른 압력저항과 마찰저항 변화를 검토하였으며, 속도 2.6m/s 이상에서는 압력저항이 크게 증가하면서 전체저항이 커지는 현상이 발생한다. 현재 카약 구조는 운용 시 고려할 수 있는 설계하중을 고려 시, 충분한 안전율을 갖고 있음을 확인하였다.

카약형 소형보트 및 라이프 자켓의 인식도와 참여동기, 참여만족도간의 인과모형 검증

오일영(Il Young Oh),정동화(Dong Hwa Jung),이동현(Dong Hyun Lee) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.51

This paper examined the cognition for inflatable kayak and life jacket. The assembly, safety, convenience, and carry-on were as proxy for the characteristics of the inflatable kayak. The extrinsic motivation and intrinsic motivation were as proxy for the participation motivation of water-leisure sports. The psychology satisfaction and physical and mental satisfaction were as proxy for the satisfaction of water-leisure sports. Based on the analysis of one thousand five hundred cases, the following results were found. First, the characteristics of the inflatable kayak has a positively significant influence on the participation motivation of water-leisure sports. Second, the characteristics of the life jacket has a positively significant influence on the satisfaction of water leisure sports. Third, the participation motivation of water-leisure sports have a positively significant influence on the participation of water-leisure sports. The main purpose of this study is verification of causal model between the participating motive and participating satisfaction depending on the awareness of kayak type small boats and jackets.

국내의 카약,카누관련 연구문헌에 대한 내용분석

박태준 ( Tae Jun Park ),오영택 ( Young Taek Oh ),양명환 ( Myoung Hwan Yang ) 제주대학교 해양스포츠센터 2015 해양스포츠연구 Vol.5 No.1

The purposes of this research are to analyze 56 these related to kayakㆍcanoe in domestic academic journals from 2000 to 2014 and provide basic data for following research on kayakㆍcanoe. Published theses were divided into 2000~2004,2005~2009, 2010~2014 and divided by type of researcher, type of author, field of research, type of research, division of the level of feleased thesis, subject of research, object of research and method of data treatment and analytsis. The results are as follows. First, joint researchers of more than 3 people showed higher rate than 1 researcher from 2010~2014. Second, as the result of analysis on the field of research, exercise physiology was the most preferred and the next was sports psychology, Sports biomechanics and sports training in order. Third, as the result of analysis on the type of research, experiment researches were conducted the mostly. The next is descriptive researches, analytic researches in order. Fourth, as the result of analysis by level of academic journal, there were a thesis, registered journal, other academic journal and registration candidate journal in order. Fifth as the result of analysis on subject of research, physical composition, and exercise function showed the most frequency. Sixth, as the result of analysis on object of research, there were elite athlete elite athlete and general person and general person in order. Seventh as the result of analysis by method of data treatment, descriptive statistics were the analytic method preferred the mostly and the next was t-test, variance analysis, reliability analysis, correlation analysis regression analysis factor analysis and structural equation modeling in order.

엘리트 카약선수의 카약 에르고미터 동작 시 신체활동 특성 및 등속성 근력 분석

이용희,강서정 한국생활환경학회 2012 한국생활환경학회지 Vol.19 No.3

The purpose of this study was to investigate the physical activity characteristics and isokinetic muscular strength during kayak erogometer motions in elite kayak athletes. Participants consisted of 10 male kayak athletes and 10 male non-kayak athletes matched controls. Physical activity characteristics(PAC) was measured using tri-axial accelerometer during rowing motion using rowing ergometer. Isokinetic muscular strength was assessed the peak torque of elbow and knee joints. Independent t-test was used to analyze the data. As a result, Physical activity counts were significantly differences between kayak athletes and non-kayak athletes in sum of vertical(VT) and anteroposterior(AP) activity counts and sum of VT, AP and left-right activity counts(respectively, p<.01 and p<.01). There were significantly differences between the peak torque of kayak athletes and non-kayak athletes in internal-external rotation of elbow joints and left flexion of knee joint(respectively, p<.01 and p<.05). These findings suggest that PAC and isokinetic muscular strength needs to consider in the training of elite kayak athletes. Specially, it is important to improvement balance and flexibility of trunk and increase of brachialis muscle in the elite kayak athletes. But additional research is needed to confirm this finding.

카약선수의 대칭훈련이 경기력 향상에 미치는 영향

권봉안 한국스포츠학회 2015 한국스포츠학회지 Vol.13 No.4

This study is to investigate pre-kayaking kayak athletes performances intended for more than five years experience kayaking, kayak performances element of 100m record by performing 12 weeks symmetrical movement, 500m record, 1000m records were analyzed.Research subjects belong to K Seoul National University and kayak part was intended for more than five years experience kayaking kayak hit a total of 20 players symmetrical exercise program participation seekers. The researchers found 20 control group 10 patients, were assigned to the experimental group and the exercise group, 10 people. 12-week exercise program symmetry experimental group (n=10) as the destination for a day an hour, was conducted three times a week, control group (n=10) was carried out only general kayak training. Kayak player after 12 weeks symmetrical exercise program implementation Stroke 2 Max Ergo is a result of the experimental group analyzed the 100m record 100m record had decreased slightly than the control group these changes the paired-t-test as a result there is no statistically significant difference It appeared. These results are symmetrical exercise program has improved the impact of short-range performance - is considered low. 12 weeks symmetrical exercise program implemented after Stroke 2 Max Ergo 500m record analyze the results of the experimental group than the control group kayak athletes 500m record fell slightly. After these changes, paired-t-test, there was no statistically significant difference. These results are symmetrical exercise program has improved the impact of short-range performance - is considered low. Symmetry exercise program performed two weeks after Stroke 2 Max Ergo 1000m a result of the experimental group analyzed the records of players 1000m kayak recording time was shorter than the control group. These changes in the movement group of the paired-t-test, and results were recorded 1000m is statistically significant difference.